Subtract 32/90 from 7/25
7/25 - 32/90 is -17/225.
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,
7/25 = 7 × 18/25 × 18 = 126/450 - Likewise, for the 2nd fraction, since 90 × 5 = 450,
32/90 = 32 × 5/90 × 5 = 160/450 - Subtract the two like fractions:
126/450 - 160/450 = 126 - 160/450 = -34/450 - After reducing the fraction, the answer is -17/225
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/25-32/90 7/25-64/90 7/50-32/90 21/25-32/90 7/25-96/90 7/75-32/90 35/25-32/90 49/25-32/90