Question

divide the sum of 13/5 and - 12/7 by the product of - 31/7 and 1/-2​

Answer 1

Answer:

sum of -13/5 and 12/7

-91+60/35=-31/35

product = -31/7 ×1/-2 =31/14

Now -31/35÷31/14 =-31/35 ×14/31 =-5/2 Ans

Answer 2

sum of 13/5 + (-12/7)

LCM of 5 ,7 = 35

(13/7 ×7)+ (-12/7×5)

(91/35) + (-60/35)

(91/35)-(60/35)

91 -60/35

31/35

difference (13/5) + (-12/7)

91-(-60)/35

91+60/35

151/35

now,

divide 31/35÷151/35

31/35×35/151

answer =31/151