Answers

Subtract 56/63 from 1/72

1/72 - 56/63 is -7/8.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 72 and 63 is 504
   
   Next, find the equivalent fraction of both fractional numbers with denominator 504
2. For the 1st fraction, since 72 × 7 = 504,
   1/72 = 1 × 7/72 × 7 = 7/504
3. Likewise, for the 2nd fraction, since 63 × 8 = 504,
   56/63 = 56 × 8/63 × 8 = 448/504
4. Subtract the two like fractions:
   7/504 - 448/504 = 7 - 448/504 = -441/504
5. After reducing the fraction, the answer is -7/8

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