Answers

Subtract 70/27 from 15/28

1^st number: 15/28, 2^nd number: 2 16/27

15/28 - 70/27 is -1555/756.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 28 and 27 is 756
   
   Next, find the equivalent fraction of both fractional numbers with denominator 756
2. For the 1st fraction, since 28 × 27 = 756,
   15/28 = 15 × 27/28 × 27 = 405/756
3. Likewise, for the 2nd fraction, since 27 × 28 = 756,
   70/27 = 70 × 28/27 × 28 = 1960/756
4. Subtract the two like fractions:
   405/756 - 1960/756 = 405 - 1960/756 = -1555/756

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