Subtract 84/45 from 56/18
1st number: 3 2/18, 2nd number: 1 39/45
56/18 - 84/45 is 56/45.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 45 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 18 × 5 = 90,
56/18 = 56 × 5/18 × 5 = 280/90 - Likewise, for the 2nd fraction, since 45 × 2 = 90,
84/45 = 84 × 2/45 × 2 = 168/90 - Subtract the two like fractions:
280/90 - 168/90 = 280 - 168/90 = 112/90 - After reducing the fraction, the answer is 56/45
- In mixed form: 111/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/36-84/45 56/18-84/90 56/54-84/45 56/90-84/45