Answers

Subtract 3/56 from 80/42

1^st number: 1 38/42, 2^nd number: 3/56

80/42 - 3/56 is 311/168.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 42 and 56 is 168
   
   Next, find the equivalent fraction of both fractional numbers with denominator 168
2. For the 1st fraction, since 42 × 4 = 168,
   80/42 = 80 × 4/42 × 4 = 320/168
3. Likewise, for the 2nd fraction, since 56 × 3 = 168,
   3/56 = 3 × 3/56 × 3 = 9/168
4. Subtract the two like fractions:
   320/168 - 9/168 = 320 - 9/168 = 311/168
5. In mixed form: 1143/168

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