Subtract 7/45 from 45/28
1st number: 1 17/28, 2nd number: 7/45
45/28 - 7/45 is 1829/1260.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 45 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 28 × 45 = 1260,
45/28 = 45 × 45/28 × 45 = 2025/1260 - Likewise, for the 2nd fraction, since 45 × 28 = 1260,
7/45 = 7 × 28/45 × 28 = 196/1260 - Subtract the two like fractions:
2025/1260 - 196/1260 = 2025 - 196/1260 = 1829/1260 - In mixed form: 1569/1260
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/28-7/45 45/28-14/45 45/56-7/45 45/28-7/90 45/28-21/45 45/84-7/45 45/28-35/45 45/28-49/45