Answers

Subtract 21/56 from 72/28

1^st number: 2 16/28, 2^nd number: 21/56

72/28 - 21/56 is 123/56.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 28 and 56 is 56
2. For the 1st fraction, since 28 × 2 = 56,
   72/28 = 72 × 2/28 × 2 = 144/56
3. Likewise, for the 2nd fraction, since 56 × 1 = 56,
   21/56 = 21 × 1/56 × 1 = 21/56
4. Subtract the two fractions:
   144/56 - 21/56 = 144 - 21/56 = 123/56
5. In mixed form: 211/56

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