Subtract 7/25 from 90/70
1st number: 1 20/70, 2nd number: 7/25
90/70 - 7/25 is 176/175.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 25 is 350
Next, find the equivalent fraction of both fractional numbers with denominator 350 - For the 1st fraction, since 70 × 5 = 350,
90/70 = 90 × 5/70 × 5 = 450/350 - Likewise, for the 2nd fraction, since 25 × 14 = 350,
7/25 = 7 × 14/25 × 14 = 98/350 - Subtract the two like fractions:
450/350 - 98/350 = 450 - 98/350 = 352/350 - After reducing the fraction, the answer is 176/175
- In mixed form: 11/175
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/70-14/25 90/70-7/50 90/70-21/25 90/70-7/75 90/70-35/25 90/70-49/25