Answers

Subtract 63/72 from 21/14

1^st number: 1 7/14, 2^nd number: 63/72

21/14 - 63/72 is 5/8.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 14 and 72 is 504
   
   Next, find the equivalent fraction of both fractional numbers with denominator 504
2. For the 1st fraction, since 14 × 36 = 504,
   21/14 = 21 × 36/14 × 36 = 756/504
3. Likewise, for the 2nd fraction, since 72 × 7 = 504,
   63/72 = 63 × 7/72 × 7 = 441/504
4. Subtract the two like fractions:
   756/504 - 441/504 = 756 - 441/504 = 315/504
5. After reducing the fraction, the answer is 5/8

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