Maths 15 1 21 Find equivalent fractions Fractions

Maths 15. 1. 21

Find equivalent fractions Fractions with different numerators and denominators that represent the same value or proportion of the whole.

Warm Up

Warm Up 2 3 3 2 8 16 4 12 16 24

How many equal sections is each square cut into? 2 4 8 16 How many of the sections are blue? 1 2 4 8 What fraction of each square is blue? x 2 Are these fractions equal? How do you get from one fraction to the next? x 2

Find equivalent fractions Success Criteria: Multiply the denominator and numerator by the same number.

How many equal sections is each square cut into? 3 9 36 How many of the sections are blue? 1 3 12 What fraction of each square is blue? x 3 x 4 Are these fractions equal? How do you get from one fraction to the next?

To find equivalent fractions you multiply the numerator (the top number) and the denominator (the bottom number) by the same number. E. g. Find 3 equivalent fractions to = x 2 = = x 6 x 24 : Remember you can multiply by any number!!! Practice Questions: Find 3 equivalent fractions for each question a) e) i) b) f) j) c) g) k) d) h) l)

What has happened here? x 5 5 x 5

Challenge One: Challenge Two: Challenge Three:

Plenary Which fraction is the odd one out? Which one is not equivalent to the others?

Plenary Which fraction is the odd one out? Which one is not equivalent to the others?

Challenge One: 12 45 45 24 21 32 44 42 54 36 72 120 2 4 7 7 Challenge Two: 6 15 28 25 72 20 28 99 49 24 40 36 8 9 44 36 Remember: Multiply the denominator and numerator by the same number each time. Work out what has been done to either the numerator or denominator, then apply this to the missing number.