Subtract 9/21 from 14/54
14/54 - 9/21 is -32/189.
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,
9/21 = 9 × 18/21 × 18 = 162/378 - Subtract the two like fractions:
98/378 - 162/378 = 98 - 162/378 = -64/378 - After reducing the fraction, the answer is -32/189
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 28/54-9/21 14/54-18/21 14/54-9/42 42/54-9/21 14/54-27/21 14/54-9/63 70/54-9/21 14/54-45/21 98/54-9/21 14/54-63/21