Subtract 36/90 from 36/28
1st number: 1 8/28, 2nd number: 36/90
36/28 - 36/90 is 31/35.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 90 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 28 × 45 = 1260,
36/28 = 36 × 45/28 × 45 = 1620/1260 - Likewise, for the 2nd fraction, since 90 × 14 = 1260,
36/90 = 36 × 14/90 × 14 = 504/1260 - Subtract the two like fractions:
1620/1260 - 504/1260 = 1620 - 504/1260 = 1116/1260 - After reducing the fraction, the answer is 31/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/28-36/90 36/28-72/90 36/56-36/90 36/84-36/90