Answers

Subtract 42/15 from 70/18

1^st number: 3 16/18, 2^nd number: 2 12/15

70/18 - 42/15 is 49/45.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 18 and 15 is 90
   
   Next, find the equivalent fraction of both fractional numbers with denominator 90
2. For the 1st fraction, since 18 × 5 = 90,
   70/18 = 70 × 5/18 × 5 = 350/90
3. Likewise, for the 2nd fraction, since 15 × 6 = 90,
   42/15 = 42 × 6/15 × 6 = 252/90
4. Subtract the two like fractions:
   350/90 - 252/90 = 350 - 252/90 = 98/90
5. After reducing the fraction, the answer is 49/45
6. In mixed form: 14/45

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