Answers

Subtract 42/28 from 30/20

1^st number: 1 10/20, 2^nd number: 1 14/28

30/20 - 42/28 is 0/1.

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,
   30/20 = 30 × 7/20 × 7 = 210/140
3. Likewise, for the 2nd fraction, since 28 × 5 = 140,
   42/28 = 42 × 5/28 × 5 = 210/140
4. Subtract the two like fractions:
   210/140 - 210/140 = 210 - 210/140 = 0/140
5. The answer is 0

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