Fractions YouTube Lecture Handouts
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Fractions - 4 Speed Tricks & 3 Typical Word Problems
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
Addingâź‹Subtractingâź‹Comparing like Fractions
Addingâź‹Subtractingâź‹Comparing Unlike Fractions
Addingâź‹Subtractingâź‹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 3âź‹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