Answers

Subtract 4/63 from 15/42

15/42 - 4/63 is 37/126.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 42 and 63 is 126
   
   Next, find the equivalent fraction of both fractional numbers with denominator 126
2. For the 1st fraction, since 42 × 3 = 126,
   15/42 = 15 × 3/42 × 3 = 45/126
3. Likewise, for the 2nd fraction, since 63 × 2 = 126,
   4/63 = 4 × 2/63 × 2 = 8/126
4. Subtract the two like fractions:
   45/126 - 8/126 = 45 - 8/126 = 37/126

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