Answers

Subtract 75/8 from 70/20

1^st number: 3 10/20, 2^nd number: 9 3/8

70/20 - 75/8 is -47/8.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 20 and 8 is 40
   
   Next, find the equivalent fraction of both fractional numbers with denominator 40
2. For the 1st fraction, since 20 × 2 = 40,
   70/20 = 70 × 2/20 × 2 = 140/40
3. Likewise, for the 2nd fraction, since 8 × 5 = 40,
   75/8 = 75 × 5/8 × 5 = 375/40
4. Subtract the two like fractions:
   140/40 - 375/40 = 140 - 375/40 = -235/40
5. After reducing the fraction, the answer is -47/8

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