Answers

Subtract 45/28 from 36/20

1^st number: 1 16/20, 2^nd number: 1 17/28

36/20 - 45/28 is 27/140.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 20 and 28 is 140
   
   Next, find the equivalent fraction of both fractional numbers with denominator 140
2. For the 1st fraction, since 20 × 7 = 140,
   36/20 = 36 × 7/20 × 7 = 252/140
3. Likewise, for the 2nd fraction, since 28 × 5 = 140,
   45/28 = 45 × 5/28 × 5 = 225/140
4. Subtract the two like fractions:
   252/140 - 225/140 = 252 - 225/140 = 27/140

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