Subtract 98/45 from 18/15
1st number: 1 3/15, 2nd number: 2 8/45
18/15 - 98/45 is -44/45.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 45 is 45
Next, find the equivalent fraction of both fractional numbers with denominator 45 - For the 1st fraction, since 15 × 3 = 45,
18/15 = 18 × 3/15 × 3 = 54/45 - Likewise, for the 2nd fraction, since 45 × 1 = 45,
98/45 = 98 × 1/45 × 1 = 98/45 - Subtract the two like fractions:
54/45 - 98/45 = 54 - 98/45 = -44/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/15-98/45 18/30-98/45 18/15-98/90 54/15-98/45 18/45-98/45 90/15-98/45 18/75-98/45