Subtract 70/50 from 18/5
1st number: 3 3/5, 2nd number: 1 20/50
18/5 - 70/50 is 11/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 50 is 50
Next, find the equivalent fraction of both fractional numbers with denominator 50 - For the 1st fraction, since 5 × 10 = 50,
18/5 = 18 × 10/5 × 10 = 180/50 - Likewise, for the 2nd fraction, since 50 × 1 = 50,
70/50 = 70 × 1/50 × 1 = 70/50 - Subtract the two like fractions:
180/50 - 70/50 = 180 - 70/50 = 110/50 - After reducing the fraction, the answer is 11/5
- In mixed form: 21/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/5-70/50 18/10-70/50 54/5-70/50 18/15-70/50 90/5-70/50 18/25-70/50 18/35-70/50