Subtract 7/36 from 28/90
28/90 - 7/36 is 7/60.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 36 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 90 × 2 = 180,
28/90 = 28 × 2/90 × 2 = 56/180 - Likewise, for the 2nd fraction, since 36 × 5 = 180,
7/36 = 7 × 5/36 × 5 = 35/180 - Subtract the two like fractions:
56/180 - 35/180 = 56 - 35/180 = 21/180 - After reducing the fraction, the answer is 7/60
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/90-7/36 28/90-14/36 28/90-7/72 84/90-7/36 28/90-21/36 28/90-35/36 28/90-49/36