Subtract 7/15 from 10/45
10/45 - 7/15 is -11/45.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 15 is 45
Next, find the equivalent fraction of both fractional numbers with denominator 45 - For the 1st fraction, since 45 × 1 = 45,
10/45 = 10 × 1/45 × 1 = 10/45 - Likewise, for the 2nd fraction, since 15 × 3 = 45,
7/15 = 7 × 3/15 × 3 = 21/45 - Subtract the two like fractions:
10/45 - 21/45 = 10 - 21/45 = -11/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/45-7/15 10/45-14/15 10/90-7/15 10/45-7/30 30/45-7/15 10/45-21/15 10/45-7/45 50/45-7/15 10/45-35/15 10/45-7/75 70/45-7/15 10/45-49/15