Pls answer these ratio questions with full working out I really need to now the method!

Pls Answer These Ratio Questions With Full Working Out I Really Need To Now The Method class=

Answer :

Step-by-step explanation:

a) 2+3=5

2/5 * 80= 32

3/5 * 80= 48

b) 5+7= 12

5/12 * 156= 65

7/12 * 156= 91

c) 4+5=9

4/9*384=170.67

5/9*384=213.34

d) 1+2+3=6

1/6*1.62=0.27

2/6*1.62=0.54

3/6*1.62=0.81

e) 1+1+4=6

1/6*96=16

1/6*96=16

4/6*96=64