Question

answer one by one of each and every question and also mention the part of that answer ​

Answer 1

Step-by-step explanation:

A. (1) =12/20 , 15/25, 18/30,. 21/35,. 24/40

(2) =8/28 ,. 10/35,. 12/42, 14/49,. 16/56

B.(1) = 7+2/5 = 9/5

(2)= 5+8/2= 13/2

(3)=LCM= 10

7/10 +4*2/5*2

7/10 + 8/10

15/10