Subtract 7/45 from 1/3
1/3 - 7/45 is 8/45.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 45 is 45
Next, find the equivalent fraction of both fractional numbers with denominator 45 - For the 1st fraction, since 3 × 15 = 45,
1/3 = 1 × 15/3 × 15 = 15/45 - Likewise, for the 2nd fraction, since 45 × 1 = 45,
7/45 = 7 × 1/45 × 1 = 7/45 - Subtract the two like fractions:
15/45 - 7/45 = 15 - 7/45 = 8/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/3-7/45 1/3-14/45 1/6-7/45 1/3-7/90 1/3-21/45 1/9-7/45 5/3-7/45 1/3-35/45 1/15-7/45 7/3-7/45 1/3-49/45 1/21-7/45