Subtract 18/20 from 20/14
1st number: 1 6/14, 2nd number: 18/20
20/14 - 18/20 is 37/70.
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,
20/14 = 20 × 10/14 × 10 = 200/140 - Likewise, for the 2nd fraction, since 20 × 7 = 140,
18/20 = 18 × 7/20 × 7 = 126/140 - Subtract the two like fractions:
200/140 - 126/140 = 200 - 126/140 = 74/140 - After reducing the fraction, the answer is 37/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/14-18/20 20/14-36/20 20/28-18/20 20/14-18/40 60/14-18/20 20/14-54/20 20/42-18/20 20/14-18/60 20/14-90/20 20/70-18/20 20/98-18/20