Answers

Subtract 15/7 from 5/6

1^st number: 5/6, 2^nd number: 2 1/7

5/6 - 15/7 is -55/42.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 6 and 7 is 42
   
   Next, find the equivalent fraction of both fractional numbers with denominator 42
2. For the 1st fraction, since 6 × 7 = 42,
   5/6 = 5 × 7/6 × 7 = 35/42
3. Likewise, for the 2nd fraction, since 7 × 6 = 42,
   15/7 = 15 × 6/7 × 6 = 90/42
4. Subtract the two like fractions:
   35/42 - 90/42 = 35 - 90/42 = -55/42

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