Subtract 8/5 from 28/36
1st number: 28/36, 2nd number: 1 3/5
28/36 - 8/5 is -37/45.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 5 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 36 × 5 = 180,
28/36 = 28 × 5/36 × 5 = 140/180 - Likewise, for the 2nd fraction, since 5 × 36 = 180,
8/5 = 8 × 36/5 × 36 = 288/180 - Subtract the two like fractions:
140/180 - 288/180 = 140 - 288/180 = -148/180 - After reducing the fraction, the answer is -37/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/36-8/5 28/36-16/5 28/72-8/5 28/36-8/10 84/36-8/5 28/36-24/5 28/36-8/15 28/36-40/5 28/36-8/25 28/36-56/5 28/36-8/35