Answers

Subtract 21/27 from 63/40

1^st number: 1 23/40, 2^nd number: 21/27

63/40 - 21/27 is 287/360.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 40 and 27 is 1080
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1080
2. For the 1st fraction, since 40 × 27 = 1080,
   63/40 = 63 × 27/40 × 27 = 1701/1080
3. Likewise, for the 2nd fraction, since 27 × 40 = 1080,
   21/27 = 21 × 40/27 × 40 = 840/1080
4. Subtract the two like fractions:
   1701/1080 - 840/1080 = 1701 - 840/1080 = 861/1080
5. After reducing the fraction, the answer is 287/360

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