Subtract 18/70 from 18/5
1st number: 3 3/5, 2nd number: 18/70
18/5 - 18/70 is 117/35.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 70 is 70
Next, find the equivalent fraction of both fractional numbers with denominator 70 - For the 1st fraction, since 5 × 14 = 70,
18/5 = 18 × 14/5 × 14 = 252/70 - Likewise, for the 2nd fraction, since 70 × 1 = 70,
18/70 = 18 × 1/70 × 1 = 18/70 - Subtract the two like fractions:
252/70 - 18/70 = 252 - 18/70 = 234/70 - After reducing the fraction, the answer is 117/35
- In mixed form: 312/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/5-18/70 18/5-36/70 18/10-18/70 54/5-18/70 18/5-54/70 18/15-18/70 90/5-18/70 18/5-90/70 18/25-18/70 18/35-18/70