Answers

Subtract 42/20 from 8/28

1^st number: 8/28, 2^nd number: 2 2/20

8/28 - 42/20 is -127/70.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 28 and 20 is 140
   
   Next, find the equivalent fraction of both fractional numbers with denominator 140
2. For the 1st fraction, since 28 × 5 = 140,
   8/28 = 8 × 5/28 × 5 = 40/140
3. Likewise, for the 2nd fraction, since 20 × 7 = 140,
   42/20 = 42 × 7/20 × 7 = 294/140
4. Subtract the two like fractions:
   40/140 - 294/140 = 40 - 294/140 = -254/140
5. After reducing the fraction, the answer is -127/70

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