Answers

Subtract 18/42 from 54/56

54/56 - 18/42 is 15/28.

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,
   54/56 = 54 × 3/56 × 3 = 162/168
3. Likewise, for the 2nd fraction, since 42 × 4 = 168,
   18/42 = 18 × 4/42 × 4 = 72/168
4. Subtract the two like fractions:
   162/168 - 72/168 = 162 - 72/168 = 90/168
5. After reducing the fraction, the answer is 15/28

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