Subtract 63/54 from 7/98
1st number: 7/98, 2nd number: 1 9/54
7/98 - 63/54 is -23/21.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 98 and 54 is 2646
Next, find the equivalent fraction of both fractional numbers with denominator 2646 - For the 1st fraction, since 98 × 27 = 2646,
7/98 = 7 × 27/98 × 27 = 189/2646 - Likewise, for the 2nd fraction, since 54 × 49 = 2646,
63/54 = 63 × 49/54 × 49 = 3087/2646 - Subtract the two like fractions:
189/2646 - 3087/2646 = 189 - 3087/2646 = -2898/2646 - After reducing the fraction, the answer is -23/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/98-63/54 21/98-63/54 35/98-63/54 49/98-63/54