Subtract 90/10 from 25/50
1st number: 25/50, 2nd number: 9 0/10
25/50 - 90/10 is -17/2.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 50 and 10 is 50
Next, find the equivalent fraction of both fractional numbers with denominator 50 - For the 1st fraction, since 50 × 1 = 50,
25/50 = 25 × 1/50 × 1 = 25/50 - Likewise, for the 2nd fraction, since 10 × 5 = 50,
90/10 = 90 × 5/10 × 5 = 450/50 - Subtract the two like fractions:
25/50 - 450/50 = 25 - 450/50 = -425/50 - After reducing the fraction, the answer is -17/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 25/50-90/20 75/50-90/10 25/50-90/30 25/50-90/50 25/50-90/70