Answers

Subtract 54/20 from 35/21

1^st number: 1 14/21, 2^nd number: 2 14/20

35/21 - 54/20 is -31/30.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 21 and 20 is 420
   
   Next, find the equivalent fraction of both fractional numbers with denominator 420
2. For the 1st fraction, since 21 × 20 = 420,
   35/21 = 35 × 20/21 × 20 = 700/420
3. Likewise, for the 2nd fraction, since 20 × 21 = 420,
   54/20 = 54 × 21/20 × 21 = 1134/420
4. Subtract the two like fractions:
   700/420 - 1134/420 = 700 - 1134/420 = -434/420
5. After reducing the fraction, the answer is -31/30

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