Answers

Subtract 20/63 from 42/16

1^st number: 2 10/16, 2^nd number: 20/63

42/16 - 20/63 is 1163/504.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 16 and 63 is 1008
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1008
2. For the 1st fraction, since 16 × 63 = 1008,
   42/16 = 42 × 63/16 × 63 = 2646/1008
3. Likewise, for the 2nd fraction, since 63 × 16 = 1008,
   20/63 = 20 × 16/63 × 16 = 320/1008
4. Subtract the two like fractions:
   2646/1008 - 320/1008 = 2646 - 320/1008 = 2326/1008
5. After reducing the fraction, the answer is 1163/504
6. In mixed form: 2155/504

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