Subtract 49/54 from 7/30
7/30 - 49/54 is -91/135.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 54 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 30 × 9 = 270,
7/30 = 7 × 9/30 × 9 = 63/270 - Likewise, for the 2nd fraction, since 54 × 5 = 270,
49/54 = 49 × 5/54 × 5 = 245/270 - Subtract the two like fractions:
63/270 - 245/270 = 63 - 245/270 = -182/270 - After reducing the fraction, the answer is -91/135
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/30-49/54 7/30-98/54 7/60-49/54 21/30-49/54 7/90-49/54 35/30-49/54 49/30-49/54