Answers

Subtract 63/56 from 18/72

1^st number: 18/72, 2^nd number: 1 7/56

18/72 - 63/56 is -7/8.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 72 and 56 is 504
   
   Next, find the equivalent fraction of both fractional numbers with denominator 504
2. For the 1st fraction, since 72 × 7 = 504,
   18/72 = 18 × 7/72 × 7 = 126/504
3. Likewise, for the 2nd fraction, since 56 × 9 = 504,
   63/56 = 63 × 9/56 × 9 = 567/504
4. Subtract the two like fractions:
   126/504 - 567/504 = 126 - 567/504 = -441/504
5. After reducing the fraction, the answer is -7/8

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