Answers

Subtract 20/42 from 15/6

1^st number: 2 3/6, 2^nd number: 20/42

15/6 - 20/42 is 85/42.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 6 and 42 is 42
   
   Next, find the equivalent fraction of both fractional numbers with denominator 42
2. For the 1st fraction, since 6 × 7 = 42,
   15/6 = 15 × 7/6 × 7 = 105/42
3. Likewise, for the 2nd fraction, since 42 × 1 = 42,
   20/42 = 20 × 1/42 × 1 = 20/42
4. Subtract the two like fractions:
   105/42 - 20/42 = 105 - 20/42 = 85/42
5. In mixed form: 21/42

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