Answers

Subtract 72/10 from 63/15

1^st number: 4 3/15, 2^nd number: 7 2/10

63/15 - 72/10 is -3/1.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 15 and 10 is 30
   
   Next, find the equivalent fraction of both fractional numbers with denominator 30
2. For the 1st fraction, since 15 × 2 = 30,
   63/15 = 63 × 2/15 × 2 = 126/30
3. Likewise, for the 2nd fraction, since 10 × 3 = 30,
   72/10 = 72 × 3/10 × 3 = 216/30
4. Subtract the two like fractions:
   126/30 - 216/30 = 126 - 216/30 = -90/30
5. After reducing the fraction, the answer is -3/1

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