Subtract 75/28 from 56/45
1st number: 1 11/45, 2nd number: 2 19/28
56/45 - 75/28 is -1807/1260.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 28 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 45 × 28 = 1260,
56/45 = 56 × 28/45 × 28 = 1568/1260 - Likewise, for the 2nd fraction, since 28 × 45 = 1260,
75/28 = 75 × 45/28 × 45 = 3375/1260 - Subtract the two like fractions:
1568/1260 - 3375/1260 = 1568 - 3375/1260 = -1807/1260
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/90-75/28 56/45-75/56 56/45-75/84