Subtract 7/90 from 2/25
2/25 - 7/90 is 1/450.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 90 is 450
Next, find the equivalent fraction of both fractional numbers with denominator 450 - For the 1st fraction, since 25 × 18 = 450,
2/25 = 2 × 18/25 × 18 = 36/450 - Likewise, for the 2nd fraction, since 90 × 5 = 450,
7/90 = 7 × 5/90 × 5 = 35/450 - Subtract the two like fractions:
36/450 - 35/450 = 36 - 35/450 = 1/450
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/25-7/90 2/25-14/90 2/50-7/90 6/25-7/90 2/25-21/90 2/75-7/90 10/25-7/90 2/25-35/90 14/25-7/90 2/25-49/90