Question

What should be added to -7/3 to get 3/7?
A) 21/58
B) 58/21
C) 47/21
D) 50/21​

Answer 1

Answer :

Let x be the number to be added,

-7/3 + x = 3/7

x = 3/7 + 7/3

Cross multiplying,

x = (3×3 + 7×7) / (7×3)

x = (9+49)/21

x = 58/21

Therefore,

(B) 58/21 is the correct answer.

Answer 2

Answer:

⇒7/3+3/7

⇒49+9/21

⇒58/21