Answers

Subtract 63/84 from 63/15

1^st number: 4 3/15, 2^nd number: 63/84

63/15 - 63/84 is 69/20.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 15 and 84 is 420
   
   Next, find the equivalent fraction of both fractional numbers with denominator 420
2. For the 1st fraction, since 15 × 28 = 420,
   63/15 = 63 × 28/15 × 28 = 1764/420
3. Likewise, for the 2nd fraction, since 84 × 5 = 420,
   63/84 = 63 × 5/84 × 5 = 315/420
4. Subtract the two like fractions:
   1764/420 - 315/420 = 1764 - 315/420 = 1449/420
5. After reducing the fraction, the answer is 69/20
6. In mixed form: 39/20

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