By Mdm Yvonne Ong

Jane has 30 fish.Amy has 24 fish.

Express the number of fish Jane has as a fraction to the number of fish Amy has.

J A = 30

24 = 5 4

Jane has 30 fish.Amy has 24 fish.What fraction of the number of fish Jane has is the number of fish Amy has?

A J = 24

30 = 4 5

Merging Ratio

Red : Blue 5 : 2Blue :

Green 3 : 5

Make the units ofthe blue beadsthe same for the 2 ratios.

Common multiple for 2 and 3 is 6.

x3x3

x2 x2

15 : 6 : 10

a) The ratio is 15:6:10Ans: a) 15:6:10

Ratio unchanged

Red : Blue

: Green 2/3 of the remainingcounters

2/3 of remaining is 16 units.

b) 432 counters were left Ans: b) 432 counters

15 : 6 : 10

1/3 of remaining is 16 ÷ 2 = 8 units

8 : 6 : 10

15 – 8 = 77 units 126

1 units 126 ÷ 7 = 18 8 + 6 + 10 = 24

24 units 24 x 18= 432