Subtract 10/14 from 18/20
18/20 - 10/14 is 13/70.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 14 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 20 × 7 = 140,
18/20 = 18 × 7/20 × 7 = 126/140 - Likewise, for the 2nd fraction, since 14 × 10 = 140,
10/14 = 10 × 10/14 × 10 = 100/140 - Subtract the two like fractions:
126/140 - 100/140 = 126 - 100/140 = 26/140 - After reducing the fraction, the answer is 13/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/20-10/14 18/20-20/14 18/40-10/14 18/20-10/28 54/20-10/14 18/20-30/14 18/60-10/14 18/20-10/42 90/20-10/14 18/20-50/14 18/20-10/70 18/20-70/14 18/20-10/98