Subtract 72/75 from 3/28
3/28 - 72/75 is -597/700.
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,
3/28 = 3 × 75/28 × 75 = 225/2100 - Likewise, for the 2nd fraction, since 75 × 28 = 2100,
72/75 = 72 × 28/75 × 28 = 2016/2100 - Subtract the two like fractions:
225/2100 - 2016/2100 = 225 - 2016/2100 = -1791/2100 - After reducing the fraction, the answer is -597/700
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/28-72/75 3/56-72/75 9/28-72/75 3/84-72/75 15/28-72/75 21/28-72/75