Subtract 90/75 from 6/28
1st number: 6/28, 2nd number: 1 15/75
6/28 - 90/75 is -69/70.
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,
6/28 = 6 × 75/28 × 75 = 450/2100 - Likewise, for the 2nd fraction, since 75 × 28 = 2100,
90/75 = 90 × 28/75 × 28 = 2520/2100 - Subtract the two like fractions:
450/2100 - 2520/2100 = 450 - 2520/2100 = -2070/2100 - After reducing the fraction, the answer is -69/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/28-90/75 6/56-90/75 18/28-90/75 6/84-90/75 30/28-90/75 42/28-90/75