Subtract 56/45 from 3/4
1st number: 3/4, 2nd number: 1 11/45
3/4 - 56/45 is -89/180.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 45 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 4 × 45 = 180,
3/4 = 3 × 45/4 × 45 = 135/180 - Likewise, for the 2nd fraction, since 45 × 4 = 180,
56/45 = 56 × 4/45 × 4 = 224/180 - Subtract the two like fractions:
135/180 - 224/180 = 135 - 224/180 = -89/180
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/4-56/45 3/8-56/45 3/4-56/90 9/4-56/45 3/12-56/45 15/4-56/45 3/20-56/45 21/4-56/45 3/28-56/45