Answers

Subtract 25/28 from 21/12

1^st number: 1 9/12, 2^nd number: 25/28

21/12 - 25/28 is 6/7.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 12 and 28 is 84
   
   Next, find the equivalent fraction of both fractional numbers with denominator 84
2. For the 1st fraction, since 12 × 7 = 84,
   21/12 = 21 × 7/12 × 7 = 147/84
3. Likewise, for the 2nd fraction, since 28 × 3 = 84,
   25/28 = 25 × 3/28 × 3 = 75/84
4. Subtract the two like fractions:
   147/84 - 75/84 = 147 - 75/84 = 72/84
5. After reducing the fraction, the answer is 6/7

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