Answers

Subtract 18/10 from 70/80

1^st number: 70/80, 2^nd number: 1 8/10

70/80 - 18/10 is -37/40.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 80 and 10 is 80
2. For the 1st fraction, since 80 × 1 = 80,
   70/80 = 70 × 1/80 × 1 = 70/80
3. Likewise, for the 2nd fraction, since 10 × 8 = 80,
   18/10 = 18 × 8/10 × 8 = 144/80
4. Subtract the two fractions:
   70/80 - 144/80 = 70 - 144/80 = -74/80
5. After reducing the fraction, the answer is -37/40

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