说明
Obtaining the proper fractions listed at the top of the application, adding two or three unit fractions.
Each proposed proper fraction has a variable number of solutions.
And different levels of difficulty
You can not repeat unit fractions with the same value.
In the app you'll find a button to delete all the solutions found in the current problem, and to start from scratch.
The littlest unit fraction used in this app is 1/28.
The program is designed to show the usefulness of the subtraction of fractions in solving such problems.
From www.nummolt.com
This is an evolution of the "Old Egyptian Fractions" made in collaboration with www.mathcats.com
Hint:
In the Rhind Mathematical Papyrus (RMP) in 1650 BC the scribe Ahmes copied the now-lost test from the reign of the king Amenemamhat III .
The first part of the papyrus is taken up by the 2/n table. The fractions 2/n for odd n ranging from 3 to 101 are expressed as sums of unit fractions.
In this app you can build some of the Ahmes decompositions ( 2/3 , 2/5, 2/7, 2/9 ) and the discarded ones by him also.
The app allow to decompose also: 3/4 , 3/5 , 4/5 , 5/6 , 3/7 , 4/7 , 5/7 , 3/8 , 5/8 , 7/8 , 4/9 , 5/9 , 7/9 , 8/9 , 3/10 , 7/10 , 9/10.
You can use the knowledge acquired solving the 2/n decompositions to solve the rest of the problems.
More: http://nummolt.blogspot.com/2014/12/adding-unit-fractions.html
The app "Proper Fractions" (same developer) is the right tool that helps to solve 'adding unit fractions'
Merlot reference of this app:
https://www.merlot.org/merlot/viewMaterial.htm?id=917779
Courses:
Math 1, 2 and 3: Fractions
Math 4: Writing fractions, Equivalent fractions, Comparing and ordering, Simplifying fractions, Adding fractions, Subtracting fractions
Math 5, 6 and 7: Writing fractions, Equivalent fractions, Comparing & ordering, Simplifying fractions, Adding fractions, Subtracting fractions, Multiplying fractions, Dividing fractions
From: nummolt.com
Nummolt apps:
"Mathematics is the toughest toy. However mischievous a child may be, will never be able to break them".
屏幕截图
视频
价格
- 今天: 免费
- 最小值: 免费
- 最大值: 免费
可选
开发人员
- nummolt
- 平台: Android 应用 (35) Android 游戏 (1)
- 列表: 0 + 0
- 积分: 0 + 241 ¡
- 排名: 0
- 评价: 0
- 折扣: 0
- 视频: 34
- RSS: 订阅
积分
未找到 ☹️
排名
未找到 ☹️
列表
未找到 ☹️
评价
抢先评价一下吧 🌟
其他信息
- 版本: 1.1.6
- ID: com.nummolt.fractions.add
- 类别:
Android 应用›教育 - 操作系统:
Android 2.2 及更高版本 - 大小:
8 Mb - 内容分级:
Everyone - Google Play 评分:
0 - 已更新:
- 发布日期:
https://nummolt.blogspot.com/2022/06/adding-unit-fractions-google-play.html您可能还喜欢
-
- Adding unit fractions +
- Android 应用: 教育 来自: nummolt
- $0.99
- 列表: 0 + 0 排名: 0 评价: 0
- 积分: 0 + 0 版本: 1.1.8 The app proposes 31 challenges to overcome. Build the proper fractions listed at the top of the application, adding two, three or four unit fractions. Each proposed proper faction has ... ⥯
-
- Adding Dissimilar Fractions
- Android 应用: 教育 来自: DOST - Science Education Institute (DOST-SEI)
- 免费
- 列表: 0 + 0 排名: 0 评价: 0
- 积分: 0 + 0 版本: 1.0.64 The DOST Courseware is a locally-produced, all-original Filipino highly interactive multimedia educational application packages available both in Windows and Android versions, ... ⥯
-
- Fractions School Calculator
- Android 应用: 教育 来自: Pantelis Bouboulis
- * * 免费
- 列表: 0 + 0 排名: 0 评价: 0
- 积分: 0 + 1,655 (4.3) 版本: 1.7 This app is a simple fraction calculator that performs analytic calculations between math fractions. It has an elegant input system and gives analytic step by step solutions. It is ... ⥯
-
- Fractions Premium
- Android 应用: 教育 来自: Pavel Olegovich
- $4.49
- 列表: 0 + 0 排名: 0 评价: 0
- 积分: 0 + 0 版本: 1.19-pro This app can be used to teach and study fractions by solving addition, subtraction, division and multiplication problems with fractions step by step. ⥯
-
- Unit Conversion Quiz
- Android 应用: 教育 来自: Hernán Apps
- * 免费
- 列表: 0 + 0 排名: 0 评价: 0
- 积分: 0 + 0 版本: 0.0.15 Introducing "Unit Conversion Quiz," your go-to app for mastering conversions! Whether you're tackling mass, length, density, or more, this app offers over 50 interactive exercises to ... ⥯
-
- Adding numbers
- Android 应用: 教育 来自: Bonaventura Novellino
- 免费
- 列表: 0 + 0 排名: 0 评价: 0
- 积分: 0 + 0 版本: 1.0 This app was designed to help you practice in addition questions with two or more addends. It works with addends in a horizontal format. You can try to do these additions mentally; it ... ⥯
-
- Fractions: calculate & compare
- Android 应用: 教育 来自: UUCMobile
- * * 免费
- 列表: 0 + 0 排名: 0 评价: 0
- 积分: 0 + 65,478 (4.6) 版本: 2.33 Free offline fraction calculator , supporting also decimals, percentages, parentheses and powers. Shows a detailed solution for all calculations. At school or home need to solve simple ⥯
-
- Unit Study
- Android 应用: 教育 来自: Education Books Media
- 免费
- 列表: 0 + 0 排名: 0 评价: 0
- 积分: 0 + 0 版本: 1.5.3.7 Unit Study transforms learning by integrating multiple subjects under a single theme. Ideal for homeschoolers and curious minds, it offers engaging, hands-on activities that encourage ... ⥯
-
- Unit Convertor
- Android 应用: 教育 来自: Mesfin Belachew
- * 免费
- 列表: 0 + 0 排名: 0 评价: 0
- 积分: 0 + 28 (4.2) 版本: 12.0 The conversion is to give an easy interface to the different languages widely spoken in Ethiopia. The languages are Amharic, Tigregna, Afaan Oromoo and English. ⥯
-
- Adding Fractions Math Trainer
- Android 应用: 教育 来自: Sergey Malugin
- 免费
- 列表: 0 + 1 排名: 0 评价: 0
- 积分: 3 + 0 版本: New Unlock the full potential of your math skills with our dynamic learning app! Enjoy engaging mini-games with adaptive difficulty and seamless handwriting input that makes every practice ⥯
-
- Fractions & Shapes
- Android 应用: 教育 来自: Magiwise
- $3.99
- 列表: 0 + 0 排名: 0 评价: 0
- 积分: 0 + 0 版本: 3.0 Unlock the world of fractions with our amazing app, Fraction & Shapes ! Say goodbye to confusion and hello to understanding as you embark on an exciting journey to master the concept ... ⥯
-
- Fractions Math Pro
- Android 应用: 教育 来自: GK Apps
- $0.99
- 列表: 0 + 1 排名: 0 评价: 0
- 积分: 4 + 1,102 (4.0) 版本: 25.1 This calculator is the pro version of 'Fractions Math', and completely without advertisement. This math app is a fractions calculator with various functions: - add, subtract, multiply ... ⥯
-
- Fractions.Equations.Inequality
- Android 应用: 教育 来自: YuSoft
- * 免费
- 列表: 0 + 0 排名: 0 评价: 0
- 积分: 0 + 0 版本: 2.5 Calculator is ready to perform the following tasks: - calculate a numeric expression with common and decimal fractions, parentheses, power, square root and percentages; - show a short ... ⥯
-
- Fractions Calculator
- Android 应用: 教育 来自: CALCULATOR IO
- * 免费
- 列表: 0 + 0 排名: 0 评价: 0
- 积分: 0 + 0 版本: 2.0.0 Presenting the Fraction Calculator app your reliable companion for all fraction-related calculations. With this user-friendly mobile tool, handling fractions becomes a breeze, no ... ⥯