Answers

Subtract 7/15 from 63/21

1^st number: 3 0/21, 2^nd number: 7/15

63/21 - 7/15 is 38/15.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 21 and 15 is 105
   
   Next, find the equivalent fraction of both fractional numbers with denominator 105
2. For the 1st fraction, since 21 × 5 = 105,
   63/21 = 63 × 5/21 × 5 = 315/105
3. Likewise, for the 2nd fraction, since 15 × 7 = 105,
   7/15 = 7 × 7/15 × 7 = 49/105
4. Subtract the two like fractions:
   315/105 - 49/105 = 315 - 49/105 = 266/105
5. After reducing the fraction, the answer is 38/15
6. In mixed form: 28/15

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