Subtract 18/75 from 7/28
7/28 - 18/75 is 1/100.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 75 is 2100
Next, find the equivalent fraction of both fractional numbers with denominator 2100 - For the 1st fraction, since 28 × 75 = 2100,
7/28 = 7 × 75/28 × 75 = 525/2100 - Likewise, for the 2nd fraction, since 75 × 28 = 2100,
18/75 = 18 × 28/75 × 28 = 504/2100 - Subtract the two like fractions:
525/2100 - 504/2100 = 525 - 504/2100 = 21/2100 - After reducing the fraction, the answer is 1/100
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/28-18/75 7/28-36/75 7/56-18/75 21/28-18/75 7/28-54/75 7/84-18/75 35/28-18/75 7/28-90/75 49/28-18/75