Subtract 14/45 from 45/30
1st number: 1 15/30, 2nd number: 14/45
45/30 - 14/45 is 107/90.
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,
45/30 = 45 × 3/30 × 3 = 135/90 - Likewise, for the 2nd fraction, since 45 × 2 = 90,
14/45 = 14 × 2/45 × 2 = 28/90 - Subtract the two like fractions:
135/90 - 28/90 = 135 - 28/90 = 107/90 - In mixed form: 117/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/30-14/45 45/30-28/45 45/60-14/45 45/30-14/90 45/30-42/45 45/90-14/45 45/30-70/45 45/30-98/45