Answers

Subtract 63/8 from 18/72

1^st number: 18/72, 2^nd number: 7 7/8

18/72 - 63/8 is -61/8.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 72 and 8 is 72
   
   Next, find the equivalent fraction of both fractional numbers with denominator 72
2. For the 1st fraction, since 72 × 1 = 72,
   18/72 = 18 × 1/72 × 1 = 18/72
3. Likewise, for the 2nd fraction, since 8 × 9 = 72,
   63/8 = 63 × 9/8 × 9 = 567/72
4. Subtract the two like fractions:
   18/72 - 567/72 = 18 - 567/72 = -549/72
5. After reducing the fraction, the answer is -61/8

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