Answers

Subtract 7/40 from 28/27

1^st number: 1 1/27, 2^nd number: 7/40

28/27 - 7/40 is 931/1080.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 27 and 40 is 1080
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1080
2. For the 1st fraction, since 27 × 40 = 1080,
   28/27 = 28 × 40/27 × 40 = 1120/1080
3. Likewise, for the 2nd fraction, since 40 × 27 = 1080,
   7/40 = 7 × 27/40 × 27 = 189/1080
4. Subtract the two like fractions:
   1120/1080 - 189/1080 = 1120 - 189/1080 = 931/1080

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