Subtract 8/5 from 18/70
1st number: 18/70, 2nd number: 1 3/5
18/70 - 8/5 is -47/35.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 5 is 70
Next, find the equivalent fraction of both fractional numbers with denominator 70 - For the 1st fraction, since 70 × 1 = 70,
18/70 = 18 × 1/70 × 1 = 18/70 - Likewise, for the 2nd fraction, since 5 × 14 = 70,
8/5 = 8 × 14/5 × 14 = 112/70 - Subtract the two like fractions:
18/70 - 112/70 = 18 - 112/70 = -94/70 - After reducing the fraction, the answer is -47/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/70-8/5 18/70-16/5 18/70-8/10 54/70-8/5 18/70-24/5 18/70-8/15 90/70-8/5 18/70-40/5 18/70-8/25 18/70-56/5 18/70-8/35