Answers

Subtract 21/56 from 25/21

1^st number: 1 4/21, 2^nd number: 21/56

25/21 - 21/56 is 137/168.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 21 and 56 is 168
   
   Next, find the equivalent fraction of both fractional numbers with denominator 168
2. For the 1st fraction, since 21 × 8 = 168,
   25/21 = 25 × 8/21 × 8 = 200/168
3. Likewise, for the 2nd fraction, since 56 × 3 = 168,
   21/56 = 21 × 3/56 × 3 = 63/168
4. Subtract the two like fractions:
   200/168 - 63/168 = 200 - 63/168 = 137/168

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