The answer are the first two are ; 3/5
And the last one : 7
Solution
3/5(a+5.25)=7.35
So
3/5(5.25)=3.15
3/5 (a) +3.15 =7.35
7.35-3.15 =4.2
So now
3/5 ( a)=4.2
3a =4.2x5
4.2 x5 =21
3a = 21
Divide by 3
So 7
So the first two box are 3/5
And the last one 7
