Subtract 54/18 from 16/15
1st number: 1 1/15, 2nd number: 3 0/18
16/15 - 54/18 is -29/15.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 18 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 15 × 6 = 90,
16/15 = 16 × 6/15 × 6 = 96/90 - Likewise, for the 2nd fraction, since 18 × 5 = 90,
54/18 = 54 × 5/18 × 5 = 270/90 - Subtract the two like fractions:
96/90 - 270/90 = 96 - 270/90 = -174/90 - After reducing the fraction, the answer is -29/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 32/15-54/18 16/30-54/18 16/15-54/36 48/15-54/18 16/45-54/18 80/15-54/18 16/75-54/18 16/15-54/90