Subtract 7/90 from 25/7
1st number: 3 4/7, 2nd number: 7/90
25/7 - 7/90 is 2201/630.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 90 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 7 × 90 = 630,
25/7 = 25 × 90/7 × 90 = 2250/630 - Likewise, for the 2nd fraction, since 90 × 7 = 630,
7/90 = 7 × 7/90 × 7 = 49/630 - Subtract the two like fractions:
2250/630 - 49/630 = 2250 - 49/630 = 2201/630 - In mixed form: 3311/630
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/7-7/90 25/7-14/90 25/14-7/90 75/7-7/90 25/7-21/90 25/21-7/90 25/7-35/90 25/35-7/90 25/7-49/90 25/49-7/90