Subtract 9/15 from 7/27
7/27 - 9/15 is -46/135.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 15 is 135
Next, find the equivalent fraction of both fractional numbers with denominator 135 - For the 1st fraction, since 27 × 5 = 135,
7/27 = 7 × 5/27 × 5 = 35/135 - Likewise, for the 2nd fraction, since 15 × 9 = 135,
9/15 = 9 × 9/15 × 9 = 81/135 - Subtract the two like fractions:
35/135 - 81/135 = 35 - 81/135 = -46/135
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/27-9/15 7/27-18/15 7/54-9/15 7/27-9/30 21/27-9/15 7/27-27/15 7/81-9/15 7/27-9/45 35/27-9/15 7/27-45/15 7/27-9/75 49/27-9/15 7/27-63/15