Answers

Subtract 15/56 from 21/16

1^st number: 1 5/16, 2^nd number: 15/56

21/16 - 15/56 is 117/112.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 16 and 56 is 112
   
   Next, find the equivalent fraction of both fractional numbers with denominator 112
2. For the 1st fraction, since 16 × 7 = 112,
   21/16 = 21 × 7/16 × 7 = 147/112
3. Likewise, for the 2nd fraction, since 56 × 2 = 112,
   15/56 = 15 × 2/56 × 2 = 30/112
4. Subtract the two like fractions:
   147/112 - 30/112 = 147 - 30/112 = 117/112
5. In mixed form: 15/112

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