Subtract 18/45 from 2/3
2/3 - 18/45 is 4/15.
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,
2/3 = 2 × 15/3 × 15 = 30/45 - Likewise, for the 2nd fraction, since 45 × 1 = 45,
18/45 = 18 × 1/45 × 1 = 18/45 - Subtract the two like fractions:
30/45 - 18/45 = 30 - 18/45 = 12/45 - After reducing the fraction, the answer is 4/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/3-18/45 2/3-36/45 2/6-18/45 2/3-18/90 6/3-18/45 2/3-54/45 2/9-18/45 10/3-18/45 2/3-90/45 2/15-18/45 14/3-18/45 2/21-18/45