Subtract 90/63 from 7/25
1st number: 7/25, 2nd number: 1 27/63
7/25 - 90/63 is -201/175.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 63 is 1575
Next, find the equivalent fraction of both fractional numbers with denominator 1575 - For the 1st fraction, since 25 × 63 = 1575,
7/25 = 7 × 63/25 × 63 = 441/1575 - Likewise, for the 2nd fraction, since 63 × 25 = 1575,
90/63 = 90 × 25/63 × 25 = 2250/1575 - Subtract the two like fractions:
441/1575 - 2250/1575 = 441 - 2250/1575 = -1809/1575 - After reducing the fraction, the answer is -201/175
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/25-90/63 7/50-90/63 21/25-90/63 7/75-90/63 35/25-90/63 49/25-90/63