Subtract 18/60 from 90/50
1st number: 1 40/50, 2nd number: 18/60
90/50 - 18/60 is 3/2.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 50 and 60 is 300
Next, find the equivalent fraction of both fractional numbers with denominator 300 - For the 1st fraction, since 50 × 6 = 300,
90/50 = 90 × 6/50 × 6 = 540/300 - Likewise, for the 2nd fraction, since 60 × 5 = 300,
18/60 = 18 × 5/60 × 5 = 90/300 - Subtract the two like fractions:
540/300 - 90/300 = 540 - 90/300 = 450/300 - After reducing the fraction, the answer is 3/2
- In mixed form: 11/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/50-36/60 90/50-54/60 90/50-90/60