Subtract 7/14 from 20/5
1st number: 4 0/5, 2nd number: 7/14
20/5 - 7/14 is 7/2.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 14 is 70
Next, find the equivalent fraction of both fractional numbers with denominator 70 - For the 1st fraction, since 5 × 14 = 70,
20/5 = 20 × 14/5 × 14 = 280/70 - Likewise, for the 2nd fraction, since 14 × 5 = 70,
7/14 = 7 × 5/14 × 5 = 35/70 - Subtract the two like fractions:
280/70 - 35/70 = 280 - 35/70 = 245/70 - After reducing the fraction, the answer is 7/2
- In mixed form: 31/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/5-7/14 20/10-7/14 20/5-7/28 60/5-7/14 20/5-21/14 20/15-7/14 20/5-7/42 20/5-35/14 20/25-7/14 20/5-7/70 20/5-49/14 20/35-7/14 20/5-7/98