Question

1/5 = 1/7 + 1/42 + _____

• A. 1/15
• B. 1/30
• C. 1/45
• D. 1/20

Answer 1

Answer:

B. 1/30

1/5 = 1/7 + 1/42 + _____ 1/5 = 6/42 + 1/42 + _____ 1/5 = 7/42 + _____ 1/5 = 1/6 + _____ 1/5 - 1/6 = 1/30