# Fractions YouTube Lecture Handouts

Doorsteptutor material for IAS is prepared by world's top subject experts: Get detailed illustrated notes covering entire syllabus: point-by-point for high retention.

Get video tutorial on: Examrace YouTube Channel

TRICK 1: For adding, subtracting, comparing unlike fractions (with different denominators) - Do not take LCM or do Cross Multiplication TRICK 2: Factorize ALL numerators & denominators TOGETHER of fractions involved in multiplication or division TRICK 3: Knowing when to convert fractions to decimals TRICK 4: Reciprocals for comparison

## Fractions “Interesting” Numbers?

## Part of Whole

## Fractions on Number Line

## Terms

- Numerator
- Denominator
- Reciprocal
- Equivalent Fractions
- Like Fractions
- Unit Fractions

## Adding/Subtracting/Comparing like Fractions

## Adding/Subtracting/Comparing Unlike Fractions

## Adding/Subtracting/Comparing Unlike Fractions

## Multiplying Fractions

## Division- Invert (Reciprocal) and Multiply

## Proper, Improper ⇿ Mixed Fractions

## Sample Problems

Eight people are planning to share equally the cost of a rental car, if one person withdraws from the arrangement and the others share equally the entire cost of the car, then the share of each of the remaining persons increased by

## Sample Problems

2 trees are growing side-by-side. One grows at 3/5 of the other. In 4 years total growth of the trees is 8 ft. what growth will smaller tree have in 2 years?

## One Tricky but Common Problem

, . Find the smallest

## Coming Next

- Unitary Method
- Rates
- Work Done
- Pipes and Cisterns
- Speed!

-Mayank