Subtract 90/36 from 50/25
1st number: 2 0/25, 2nd number: 2 18/36
50/25 - 90/36 is -1/2.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 36 is 900
Next, find the equivalent fraction of both fractional numbers with denominator 900 - For the 1st fraction, since 25 × 36 = 900,
50/25 = 50 × 36/25 × 36 = 1800/900 - Likewise, for the 2nd fraction, since 36 × 25 = 900,
90/36 = 90 × 25/36 × 25 = 2250/900 - Subtract the two like fractions:
1800/900 - 2250/900 = 1800 - 2250/900 = -450/900 - After reducing the fraction, the answer is -1/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/25-90/72 50/75-90/36