Subtract 90/20 from 49/75
1st number: 49/75, 2nd number: 4 10/20
49/75 - 90/20 is -577/150.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 20 is 300
Next, find the equivalent fraction of both fractional numbers with denominator 300 - For the 1st fraction, since 75 × 4 = 300,
49/75 = 49 × 4/75 × 4 = 196/300 - Likewise, for the 2nd fraction, since 20 × 15 = 300,
90/20 = 90 × 15/20 × 15 = 1350/300 - Subtract the two like fractions:
196/300 - 1350/300 = 196 - 1350/300 = -1154/300 - After reducing the fraction, the answer is -577/150
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/75-90/20 49/75-90/40 49/75-90/60