Answers

Subtract 45/14 from 63/72

1^st number: 63/72, 2^nd number: 3 3/14

63/72 - 45/14 is -131/56.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 72 and 14 is 504
   
   Next, find the equivalent fraction of both fractional numbers with denominator 504
2. For the 1st fraction, since 72 × 7 = 504,
   63/72 = 63 × 7/72 × 7 = 441/504
3. Likewise, for the 2nd fraction, since 14 × 36 = 504,
   45/14 = 45 × 36/14 × 36 = 1620/504
4. Subtract the two like fractions:
   441/504 - 1620/504 = 441 - 1620/504 = -1179/504
5. After reducing the fraction, the answer is -131/56

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