Question

What should be subtracted from the product of 3/7 and -5/18 to get 5/42?
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Answer 1

Answer:

5/21

Step-by-step explanation:

Let the unknown fraction be x.

(3/7 x -5/18) - x = 5/42

-15/126 - x = 5/42

x = 15/126 + 5/42

x = 15/126 + 15/126

x = 30/126

 = 15/63

 = 5/21

x = 5/21