Subtract 90/49 from 63/54
1st number: 1 9/54, 2nd number: 1 41/49
63/54 - 90/49 is -197/294.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 49 is 2646
Next, find the equivalent fraction of both fractional numbers with denominator 2646 - For the 1st fraction, since 54 × 49 = 2646,
63/54 = 63 × 49/54 × 49 = 3087/2646 - Likewise, for the 2nd fraction, since 49 × 54 = 2646,
90/49 = 90 × 54/49 × 54 = 4860/2646 - Subtract the two like fractions:
3087/2646 - 4860/2646 = 3087 - 4860/2646 = -1773/2646 - After reducing the fraction, the answer is -197/294
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/54-90/98