Subtract 18/28 from 35/40
35/40 - 18/28 is 13/56.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 28 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 40 × 7 = 280,
35/40 = 35 × 7/40 × 7 = 245/280 - Likewise, for the 2nd fraction, since 28 × 10 = 280,
18/28 = 18 × 10/28 × 10 = 180/280 - Subtract the two like fractions:
245/280 - 180/280 = 245 - 180/280 = 65/280 - After reducing the fraction, the answer is 13/56
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/40-18/28 35/40-36/28 35/80-18/28 35/40-18/56 35/40-54/28 35/40-18/84 35/40-90/28