Subtract 90/63 from 7/14
1st number: 7/14, 2nd number: 1 27/63
7/14 - 90/63 is -13/14.
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,
7/14 = 7 × 9/14 × 9 = 63/126 - Likewise, for the 2nd fraction, since 63 × 2 = 126,
90/63 = 90 × 2/63 × 2 = 180/126 - Subtract the two like fractions:
63/126 - 180/126 = 63 - 180/126 = -117/126 - After reducing the fraction, the answer is -13/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 7/28-90/63 21/14-90/63 7/42-90/63 35/14-90/63 7/70-90/63 49/14-90/63 7/98-90/63