Answers

Subtract 20/63 from 84/15

1^st number: 5 9/15, 2^nd number: 20/63

84/15 - 20/63 is 1664/315.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 15 and 63 is 315
   
   Next, find the equivalent fraction of both fractional numbers with denominator 315
2. For the 1st fraction, since 15 × 21 = 315,
   84/15 = 84 × 21/15 × 21 = 1764/315
3. Likewise, for the 2nd fraction, since 63 × 5 = 315,
   20/63 = 20 × 5/63 × 5 = 100/315
4. Subtract the two like fractions:
   1764/315 - 100/315 = 1764 - 100/315 = 1664/315
5. In mixed form: 589/315

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