Subtract 90/28 from 5/9
1st number: 5/9, 2nd number: 3 6/28
5/9 - 90/28 is -335/126.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 28 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 9 × 28 = 252,
5/9 = 5 × 28/9 × 28 = 140/252 - Likewise, for the 2nd fraction, since 28 × 9 = 252,
90/28 = 90 × 9/28 × 9 = 810/252 - Subtract the two like fractions:
140/252 - 810/252 = 140 - 810/252 = -670/252 - After reducing the fraction, the answer is -335/126
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/9-90/28 5/18-90/28 5/9-90/56 15/9-90/28 5/27-90/28 5/9-90/84 25/9-90/28 5/45-90/28 35/9-90/28 5/63-90/28