Subtract 21/75 from 40/28
1st number: 1 12/28, 2nd number: 21/75
40/28 - 21/75 is 201/175.
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,
40/28 = 40 × 75/28 × 75 = 3000/2100 - Likewise, for the 2nd fraction, since 75 × 28 = 2100,
21/75 = 21 × 28/75 × 28 = 588/2100 - Subtract the two like fractions:
3000/2100 - 588/2100 = 3000 - 588/2100 = 2412/2100 - After reducing the fraction, the answer is 201/175
- In mixed form: 126/175
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/28-21/75 40/28-42/75 40/56-21/75 40/28-63/75 40/84-21/75