Subtract 98/45 from 15/30
1st number: 15/30, 2nd number: 2 8/45
15/30 - 98/45 is -151/90.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 45 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 30 × 3 = 90,
15/30 = 15 × 3/30 × 3 = 45/90 - Likewise, for the 2nd fraction, since 45 × 2 = 90,
98/45 = 98 × 2/45 × 2 = 196/90 - Subtract the two like fractions:
45/90 - 196/90 = 45 - 196/90 = -151/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 15/60-98/45 15/30-98/90 45/30-98/45 15/90-98/45 75/30-98/45