Subtract 90/30 from 4/25
1st number: 4/25, 2nd number: 3 0/30
4/25 - 90/30 is -71/25.
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,
4/25 = 4 × 6/25 × 6 = 24/150 - Likewise, for the 2nd fraction, since 30 × 5 = 150,
90/30 = 90 × 5/30 × 5 = 450/150 - Subtract the two like fractions:
24/150 - 450/150 = 24 - 450/150 = -426/150 - After reducing the fraction, the answer is -71/25
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/25-90/30 4/50-90/30 4/25-90/60 12/25-90/30 4/75-90/30 20/25-90/30 28/25-90/30