Answers

Subtract 14/21 from 63/54

1^st number: 1 9/54, 2^nd number: 14/21

63/54 - 14/21 is 1/2.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 54 and 21 is 378
   
   Next, find the equivalent fraction of both fractional numbers with denominator 378
2. For the 1st fraction, since 54 × 7 = 378,
   63/54 = 63 × 7/54 × 7 = 441/378
3. Likewise, for the 2nd fraction, since 21 × 18 = 378,
   14/21 = 14 × 18/21 × 18 = 252/378
4. Subtract the two like fractions:
   441/378 - 252/378 = 441 - 252/378 = 189/378
5. After reducing the fraction, the answer is 1/2

MathStep (Works offline)

Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad

Related: ⁶³/₅₄-²⁸/₂₁ ⁶³/₅₄-¹⁴/₄₂ ⁶³/₅₄-⁴²/₂₁ ⁶³/₅₄-¹⁴/₆₃ ⁶³/₅₄-⁷⁰/₂₁ ⁶³/₅₄-⁹⁸/₂₁

Subtract Fractions Calculator