Subtract 36/21 from 14/54
1st number: 14/54, 2nd number: 1 15/21
14/54 - 36/21 is -275/189.
Steps for subtracting fractions
- 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 - For the 1st fraction, since 54 × 7 = 378,
14/54 = 14 × 7/54 × 7 = 98/378 - Likewise, for the 2nd fraction, since 21 × 18 = 378,
36/21 = 36 × 18/21 × 18 = 648/378 - Subtract the two like fractions:
98/378 - 648/378 = 98 - 648/378 = -550/378 - After reducing the fraction, the answer is -275/189
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 28/54-36/21 14/54-72/21 14/54-36/42 42/54-36/21 14/54-36/63 70/54-36/21 98/54-36/21