Answers

Subtract 42/10 from 28/15

1^st number: 1 13/15, 2^nd number: 4 2/10

28/15 - 42/10 is -7/3.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 15 and 10 is 30
   
   Next, find the equivalent fraction of both fractional numbers with denominator 30
2. For the 1st fraction, since 15 × 2 = 30,
   28/15 = 28 × 2/15 × 2 = 56/30
3. Likewise, for the 2nd fraction, since 10 × 3 = 30,
   42/10 = 42 × 3/10 × 3 = 126/30
4. Subtract the two like fractions:
   56/30 - 126/30 = 56 - 126/30 = -70/30
5. After reducing the fraction, the answer is -7/3

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