Subtract 18/36 from 90/50
1st number: 1 40/50, 2nd number: 18/36
90/50 - 18/36 is 13/10.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 50 and 36 is 900
Next, find the equivalent fraction of both fractional numbers with denominator 900 - For the 1st fraction, since 50 × 18 = 900,
90/50 = 90 × 18/50 × 18 = 1620/900 - Likewise, for the 2nd fraction, since 36 × 25 = 900,
18/36 = 18 × 25/36 × 25 = 450/900 - Subtract the two like fractions:
1620/900 - 450/900 = 1620 - 450/900 = 1170/900 - After reducing the fraction, the answer is 13/10
- In mixed form: 13/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/50-18/72 90/50-54/36 90/50-90/36