Subtract 3/12 from 56/45
1st number: 1 11/45, 2nd number: 3/12
56/45 - 3/12 is 179/180.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 12 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 45 × 4 = 180,
56/45 = 56 × 4/45 × 4 = 224/180 - Likewise, for the 2nd fraction, since 12 × 15 = 180,
3/12 = 3 × 15/12 × 15 = 45/180 - Subtract the two like fractions:
224/180 - 45/180 = 224 - 45/180 = 179/180
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/45-6/12 56/90-3/12 56/45-3/24 56/45-9/12 56/45-3/36 56/45-15/12 56/45-3/60 56/45-21/12 56/45-3/84