Answers

Subtract 1/42 from 7/72

7/72 - 1/42 is 37/504.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 72 and 42 is 504
   
   Next, find the equivalent fraction of both fractional numbers with denominator 504
2. For the 1st fraction, since 72 × 7 = 504,
   7/72 = 7 × 7/72 × 7 = 49/504
3. Likewise, for the 2nd fraction, since 42 × 12 = 504,
   1/42 = 1 × 12/42 × 12 = 12/504
4. Subtract the two like fractions:
   49/504 - 12/504 = 49 - 12/504 = 37/504

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