Subtract 14/54 from 28/90
28/90 - 14/54 is 7/135.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 54 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 90 × 3 = 270,
28/90 = 28 × 3/90 × 3 = 84/270 - Likewise, for the 2nd fraction, since 54 × 5 = 270,
14/54 = 14 × 5/54 × 5 = 70/270 - Subtract the two like fractions:
84/270 - 70/270 = 84 - 70/270 = 14/270 - After reducing the fraction, the answer is 7/135
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/90-14/54 28/90-28/54 84/90-14/54 28/90-42/54 28/90-70/54 28/90-98/54