Answers

Subtract 42/16 from 35/20

1^st number: 1 15/20, 2^nd number: 2 10/16

35/20 - 42/16 is -7/8.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 20 and 16 is 80
   
   Next, find the equivalent fraction of both fractional numbers with denominator 80
2. For the 1st fraction, since 20 × 4 = 80,
   35/20 = 35 × 4/20 × 4 = 140/80
3. Likewise, for the 2nd fraction, since 16 × 5 = 80,
   42/16 = 42 × 5/16 × 5 = 210/80
4. Subtract the two like fractions:
   140/80 - 210/80 = 140 - 210/80 = -70/80
5. After reducing the fraction, the answer is -7/8

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