Answers

Subtract 5/42 from 20/56

20/56 - 5/42 is 5/21.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 56 and 42 is 168
   
   Next, find the equivalent fraction of both fractional numbers with denominator 168
2. For the 1st fraction, since 56 × 3 = 168,
   20/56 = 20 × 3/56 × 3 = 60/168
3. Likewise, for the 2nd fraction, since 42 × 4 = 168,
   5/42 = 5 × 4/42 × 4 = 20/168
4. Subtract the two like fractions:
   60/168 - 20/168 = 60 - 20/168 = 40/168
5. After reducing the fraction, the answer is 5/21

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