Subtract 30/27 from 5/15
1st number: 5/15, 2nd number: 1 3/27
5/15 - 30/27 is -7/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 27 is 135
Next, find the equivalent fraction of both fractional numbers with denominator 135 - For the 1st fraction, since 15 × 9 = 135,
5/15 = 5 × 9/15 × 9 = 45/135 - Likewise, for the 2nd fraction, since 27 × 5 = 135,
30/27 = 30 × 5/27 × 5 = 150/135 - Subtract the two like fractions:
45/135 - 150/135 = 45 - 150/135 = -105/135 - After reducing the fraction, the answer is -7/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/15-30/27 5/15-60/27 5/30-30/27 5/15-30/54 5/15-90/27 5/45-30/27 5/15-30/81 25/15-30/27 5/75-30/27 35/15-30/27