Answers

Subtract 80/70 from 50/81

1^st number: 50/81, 2^nd number: 1 10/70

50/81 - 80/70 is -298/567.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 81 and 70 is 5670
   
   Next, find the equivalent fraction of both fractional numbers with denominator 5670
2. For the 1st fraction, since 81 × 70 = 5670,
   50/81 = 50 × 70/81 × 70 = 3500/5670
3. Likewise, for the 2nd fraction, since 70 × 81 = 5670,
   80/70 = 80 × 81/70 × 81 = 6480/5670
4. Subtract the two like fractions:
   3500/5670 - 6480/5670 = 3500 - 6480/5670 = -2980/5670
5. After reducing the fraction, the answer is -298/567

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