Subtract 56/5 from 70/18
1st number: 3 16/18, 2nd number: 11 1/5
70/18 - 56/5 is -329/45.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 5 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 18 × 5 = 90,
70/18 = 70 × 5/18 × 5 = 350/90 - Likewise, for the 2nd fraction, since 5 × 18 = 90,
56/5 = 56 × 18/5 × 18 = 1008/90 - Subtract the two like fractions:
350/90 - 1008/90 = 350 - 1008/90 = -658/90 - After reducing the fraction, the answer is -329/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/36-56/5 70/18-56/10 70/54-56/5 70/18-56/15 70/90-56/5 70/18-56/25 70/18-56/35