Subtract 40/75 from 1/28
1/28 - 40/75 is -209/420.
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,
1/28 = 1 × 75/28 × 75 = 75/2100 - Likewise, for the 2nd fraction, since 75 × 28 = 2100,
40/75 = 40 × 28/75 × 28 = 1120/2100 - Subtract the two like fractions:
75/2100 - 1120/2100 = 75 - 1120/2100 = -1045/2100 - After reducing the fraction, the answer is -209/420
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/28-40/75 1/28-80/75 1/56-40/75 3/28-40/75 1/84-40/75 5/28-40/75 7/28-40/75