Subtract 90/4 from 28/75
1st number: 28/75, 2nd number: 22 2/4
28/75 - 90/4 is -3319/150.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 4 is 300
Next, find the equivalent fraction of both fractional numbers with denominator 300 - For the 1st fraction, since 75 × 4 = 300,
28/75 = 28 × 4/75 × 4 = 112/300 - Likewise, for the 2nd fraction, since 4 × 75 = 300,
90/4 = 90 × 75/4 × 75 = 6750/300 - Subtract the two like fractions:
112/300 - 6750/300 = 112 - 6750/300 = -6638/300 - After reducing the fraction, the answer is -3319/150
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/75-90/4 28/75-90/8 84/75-90/4 28/75-90/12 28/75-90/20 28/75-90/28