Answers

Subtract 56/21 from 7/4

1^st number: 1 3/4, 2^nd number: 2 14/21

7/4 - 56/21 is -11/12.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 4 and 21 is 84
   
   Next, find the equivalent fraction of both fractional numbers with denominator 84
2. For the 1st fraction, since 4 × 21 = 84,
   7/4 = 7 × 21/4 × 21 = 147/84
3. Likewise, for the 2nd fraction, since 21 × 4 = 84,
   56/21 = 56 × 4/21 × 4 = 224/84
4. Subtract the two like fractions:
   147/84 - 224/84 = 147 - 224/84 = -77/84
5. After reducing the fraction, the answer is -11/12

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