Subtract 7/36 from 90/5
1st number: 18 0/5, 2nd number: 7/36
90/5 - 7/36 is 641/36.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 36 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 5 × 36 = 180,
90/5 = 90 × 36/5 × 36 = 3240/180 - Likewise, for the 2nd fraction, since 36 × 5 = 180,
7/36 = 7 × 5/36 × 5 = 35/180 - Subtract the two like fractions:
3240/180 - 35/180 = 3240 - 35/180 = 3205/180 - After reducing the fraction, the answer is 641/36
- In mixed form: 1729/36
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/5-14/36 90/10-7/36 90/5-7/72 90/5-21/36 90/15-7/36 90/5-35/36 90/25-7/36 90/5-49/36 90/35-7/36