Question

What should be added to the sum of 13/15 and 27/20 to get 9/40

Answer 1

Answer:

Step-by-step explanation:

→ 13/15 + 27/20 + x = 9/40

→ [13/15 + 27/20] + x =9/40

→ [13×4/15×4 + 27×3/20×3] + x =9/40

→ [52/60 + 81/60] + x =9/40

→ 133/60 + x 9/40

→ x = 9/40-133/60

→ x = [9×3/40×3 - 133×2/60×2]

→ x= 27/120 - 266/120

→ x = -239/120

so -239/120 should be added

Answer 2

The answer is 239/120...