Answers

Subtract 2/20 from 84/63

1^st number: 1 21/63, 2^nd number: 2/20

84/63 - 2/20 is 37/30.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 63 and 20 is 1260
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1260
2. For the 1st fraction, since 63 × 20 = 1260,
   84/63 = 84 × 20/63 × 20 = 1680/1260
3. Likewise, for the 2nd fraction, since 20 × 63 = 1260,
   2/20 = 2 × 63/20 × 63 = 126/1260
4. Subtract the two like fractions:
   1680/1260 - 126/1260 = 1680 - 126/1260 = 1554/1260
5. After reducing the fraction, the answer is 37/30
6. In mixed form: 17/30

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