Answers

Subtract 40/7 from 20/8

1^st number: 2 4/8, 2^nd number: 5 5/7

20/8 - 40/7 is -45/14.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 8 and 7 is 56
   
   Next, find the equivalent fraction of both fractional numbers with denominator 56
2. For the 1st fraction, since 8 × 7 = 56,
   20/8 = 20 × 7/8 × 7 = 140/56
3. Likewise, for the 2nd fraction, since 7 × 8 = 56,
   40/7 = 40 × 8/7 × 8 = 320/56
4. Subtract the two like fractions:
   140/56 - 320/56 = 140 - 320/56 = -180/56
5. After reducing the fraction, the answer is -45/14

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