Subtract 3/45 from 56/12
1st number: 4 8/12, 2nd number: 3/45
56/12 - 3/45 is 23/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 45 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 12 × 15 = 180,
56/12 = 56 × 15/12 × 15 = 840/180 - Likewise, for the 2nd fraction, since 45 × 4 = 180,
3/45 = 3 × 4/45 × 4 = 12/180 - Subtract the two like fractions:
840/180 - 12/180 = 840 - 12/180 = 828/180 - After reducing the fraction, the answer is 23/5
- In mixed form: 43/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/12-6/45 56/24-3/45 56/12-3/90 56/12-9/45 56/36-3/45 56/12-15/45 56/60-3/45 56/12-21/45 56/84-3/45