Subtract 20/63 from 18/14
1st number: 1 4/14, 2nd number: 20/63
18/14 - 20/63 is 61/63.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 63 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 14 × 9 = 126,
18/14 = 18 × 9/14 × 9 = 162/126 - Likewise, for the 2nd fraction, since 63 × 2 = 126,
20/63 = 20 × 2/63 × 2 = 40/126 - Subtract the two like fractions:
162/126 - 40/126 = 162 - 40/126 = 122/126 - After reducing the fraction, the answer is 61/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/14-20/63 18/14-40/63 18/28-20/63 54/14-20/63 18/14-60/63 18/42-20/63 90/14-20/63 18/70-20/63 18/98-20/63