Subtract 7/9 from 54/15
1st number: 3 9/15, 2nd number: 7/9
54/15 - 7/9 is 127/45.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 9 is 45
Next, find the equivalent fraction of both fractional numbers with denominator 45 - For the 1st fraction, since 15 × 3 = 45,
54/15 = 54 × 3/15 × 3 = 162/45 - Likewise, for the 2nd fraction, since 9 × 5 = 45,
7/9 = 7 × 5/9 × 5 = 35/45 - Subtract the two like fractions:
162/45 - 35/45 = 162 - 35/45 = 127/45 - In mixed form: 237/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/15-14/9 54/30-7/9 54/15-7/18 54/15-21/9 54/45-7/9 54/15-7/27 54/15-35/9 54/75-7/9 54/15-7/45 54/15-49/9 54/15-7/63