Answers

Subtract 27/20 from 10/14

1^st number: 10/14, 2^nd number: 1 7/20

10/14 - 27/20 is -89/140.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 14 and 20 is 140
   
   Next, find the equivalent fraction of both fractional numbers with denominator 140
2. For the 1st fraction, since 14 × 10 = 140,
   10/14 = 10 × 10/14 × 10 = 100/140
3. Likewise, for the 2nd fraction, since 20 × 7 = 140,
   27/20 = 27 × 7/20 × 7 = 189/140
4. Subtract the two like fractions:
   100/140 - 189/140 = 100 - 189/140 = -89/140

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