Subtract 5/20 from 18/14
1st number: 1 4/14, 2nd number: 5/20
18/14 - 5/20 is 29/28.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 20 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 14 × 10 = 140,
18/14 = 18 × 10/14 × 10 = 180/140 - Likewise, for the 2nd fraction, since 20 × 7 = 140,
5/20 = 5 × 7/20 × 7 = 35/140 - Subtract the two like fractions:
180/140 - 35/140 = 180 - 35/140 = 145/140 - After reducing the fraction, the answer is 29/28
- In mixed form: 11/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/14-5/20 18/14-10/20 18/28-5/20 18/14-5/40 54/14-5/20 18/14-15/20 18/42-5/20 18/14-5/60 90/14-5/20 18/14-25/20 18/70-5/20 18/14-35/20 18/98-5/20