Answers

Subtract 63/20 from 54/14

1^st number: 3 12/14, 2^nd number: 3 3/20

54/14 - 63/20 is 99/140.

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,
   54/14 = 54 × 10/14 × 10 = 540/140
3. Likewise, for the 2nd fraction, since 20 × 7 = 140,
   63/20 = 63 × 7/20 × 7 = 441/140
4. Subtract the two like fractions:
   540/140 - 441/140 = 540 - 441/140 = 99/140

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