Subtract 27/28 from 14/90
14/90 - 27/28 is -1019/1260.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 28 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 90 × 14 = 1260,
14/90 = 14 × 14/90 × 14 = 196/1260 - Likewise, for the 2nd fraction, since 28 × 45 = 1260,
27/28 = 27 × 45/28 × 45 = 1215/1260 - Subtract the two like fractions:
196/1260 - 1215/1260 = 196 - 1215/1260 = -1019/1260
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 28/90-27/28 14/90-54/28 14/90-27/56 42/90-27/28 14/90-81/28 14/90-27/84 70/90-27/28 98/90-27/28