Subtract 54/14 from 21/9
1st number: 2 3/9, 2nd number: 3 12/14
21/9 - 54/14 is -32/21.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 14 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 9 × 14 = 126,
21/9 = 21 × 14/9 × 14 = 294/126 - Likewise, for the 2nd fraction, since 14 × 9 = 126,
54/14 = 54 × 9/14 × 9 = 486/126 - Subtract the two like fractions:
294/126 - 486/126 = 294 - 486/126 = -192/126 - After reducing the fraction, the answer is -32/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/9-54/14 21/18-54/14 21/9-54/28 63/9-54/14 21/27-54/14 21/9-54/42 21/45-54/14 21/9-54/70 21/63-54/14 21/9-54/98