Subtract 28/90 from 25/7
1st number: 3 4/7, 2nd number: 28/90
25/7 - 28/90 is 1027/315.
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,
28/90 = 28 × 7/90 × 7 = 196/630 - Subtract the two like fractions:
2250/630 - 196/630 = 2250 - 196/630 = 2054/630 - After reducing the fraction, the answer is 1027/315
- In mixed form: 382/315
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/7-28/90 25/7-56/90 25/14-28/90 75/7-28/90 25/7-84/90 25/21-28/90 25/35-28/90 25/49-28/90