Subtract 8/54 from 9/15
9/15 - 8/54 is 61/135.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 54 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 15 × 18 = 270,
9/15 = 9 × 18/15 × 18 = 162/270 - Likewise, for the 2nd fraction, since 54 × 5 = 270,
8/54 = 8 × 5/54 × 5 = 40/270 - Subtract the two like fractions:
162/270 - 40/270 = 162 - 40/270 = 122/270 - After reducing the fraction, the answer is 61/135
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/15-8/54 9/15-16/54 9/30-8/54 27/15-8/54 9/15-24/54 9/45-8/54 45/15-8/54 9/15-40/54 9/75-8/54 63/15-8/54 9/15-56/54