Answers

Subtract 7/20 from 27/7

1^st number: 3 6/7, 2^nd number: 7/20

27/7 - 7/20 is 491/140.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 7 and 20 is 140
   
   Next, find the equivalent fraction of both fractional numbers with denominator 140
2. For the 1st fraction, since 7 × 20 = 140,
   27/7 = 27 × 20/7 × 20 = 540/140
3. Likewise, for the 2nd fraction, since 20 × 7 = 140,
   7/20 = 7 × 7/20 × 7 = 49/140
4. Subtract the two like fractions:
   540/140 - 49/140 = 540 - 49/140 = 491/140
5. In mixed form: 371/140

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