Answers

Subtract 90/60 from 42/15

1^st number: 2 12/15, 2^nd number: 1 30/60

42/15 - 90/60 is 13/10.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 15 and 60 is 60
   
   Next, find the equivalent fraction of both fractional numbers with denominator 60
2. For the 1st fraction, since 15 × 4 = 60,
   42/15 = 42 × 4/15 × 4 = 168/60
3. Likewise, for the 2nd fraction, since 60 × 1 = 60,
   90/60 = 90 × 1/60 × 1 = 90/60
4. Subtract the two like fractions:
   168/60 - 90/60 = 168 - 90/60 = 78/60
5. After reducing the fraction, the answer is 13/10
6. In mixed form: 13/10

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