Answers

Subtract 70/54 from 42/15

1^st number: 2 12/15, 2^nd number: 1 16/54

42/15 - 70/54 is 203/135.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 15 and 54 is 270
   
   Next, find the equivalent fraction of both fractional numbers with denominator 270
2. For the 1st fraction, since 15 × 18 = 270,
   42/15 = 42 × 18/15 × 18 = 756/270
3. Likewise, for the 2nd fraction, since 54 × 5 = 270,
   70/54 = 70 × 5/54 × 5 = 350/270
4. Subtract the two like fractions:
   756/270 - 350/270 = 756 - 350/270 = 406/270
5. After reducing the fraction, the answer is 203/135
6. In mixed form: 168/135

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