Answers

Subtract 40/27 from 27/28

1^st number: 27/28, 2^nd number: 1 13/27

27/28 - 40/27 is -391/756.

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,
   27/28 = 27 × 27/28 × 27 = 729/756
3. Likewise, for the 2nd fraction, since 27 × 28 = 756,
   40/27 = 40 × 28/27 × 28 = 1120/756
4. Subtract the two like fractions:
   729/756 - 1120/756 = 729 - 1120/756 = -391/756

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