Subtract 56/40 from 56/18
1st number: 3 2/18, 2nd number: 1 16/40
56/18 - 56/40 is 77/45.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 40 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 18 × 20 = 360,
56/18 = 56 × 20/18 × 20 = 1120/360 - Likewise, for the 2nd fraction, since 40 × 9 = 360,
56/40 = 56 × 9/40 × 9 = 504/360 - Subtract the two like fractions:
1120/360 - 504/360 = 1120 - 504/360 = 616/360 - After reducing the fraction, the answer is 77/45
- In mixed form: 132/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/36-56/40 56/18-56/80 56/54-56/40 56/90-56/40