Subtract 7/30 from 90/25
1st number: 3 15/25, 2nd number: 7/30
90/25 - 7/30 is 101/30.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 30 is 150
Next, find the equivalent fraction of both fractional numbers with denominator 150 - For the 1st fraction, since 25 × 6 = 150,
90/25 = 90 × 6/25 × 6 = 540/150 - Likewise, for the 2nd fraction, since 30 × 5 = 150,
7/30 = 7 × 5/30 × 5 = 35/150 - Subtract the two like fractions:
540/150 - 35/150 = 540 - 35/150 = 505/150 - After reducing the fraction, the answer is 101/30
- In mixed form: 311/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/25-14/30 90/50-7/30 90/25-7/60 90/25-21/30 90/75-7/30 90/25-7/90 90/25-35/30 90/25-49/30