Subtract 75/60 from 50/90
1st number: 50/90, 2nd number: 1 15/60
50/90 - 75/60 is -25/36.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 60 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 90 × 2 = 180,
50/90 = 50 × 2/90 × 2 = 100/180 - Likewise, for the 2nd fraction, since 60 × 3 = 180,
75/60 = 75 × 3/60 × 3 = 225/180 - Subtract the two like fractions:
100/180 - 225/180 = 100 - 225/180 = -125/180 - After reducing the fraction, the answer is -25/36
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: