Answers

Subtract 63/84 from 72/30

1^st number: 2 12/30, 2^nd number: 63/84

72/30 - 63/84 is 33/20.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 30 and 84 is 420
   
   Next, find the equivalent fraction of both fractional numbers with denominator 420
2. For the 1st fraction, since 30 × 14 = 420,
   72/30 = 72 × 14/30 × 14 = 1008/420
3. Likewise, for the 2nd fraction, since 84 × 5 = 420,
   63/84 = 63 × 5/84 × 5 = 315/420
4. Subtract the two like fractions:
   1008/420 - 315/420 = 1008 - 315/420 = 693/420
5. After reducing the fraction, the answer is 33/20
6. In mixed form: 113/20

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