Answers

Subtract 20/7 from 18/10

1^st number: 1 8/10, 2^nd number: 2 6/7

18/10 - 20/7 is -37/35.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 10 and 7 is 70
   
   Next, find the equivalent fraction of both fractional numbers with denominator 70
2. For the 1st fraction, since 10 × 7 = 70,
   18/10 = 18 × 7/10 × 7 = 126/70
3. Likewise, for the 2nd fraction, since 7 × 10 = 70,
   20/7 = 20 × 10/7 × 10 = 200/70
4. Subtract the two like fractions:
   126/70 - 200/70 = 126 - 200/70 = -74/70
5. After reducing the fraction, the answer is -37/35

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