Subtract 90/48 from 20/75
1st number: 20/75, 2nd number: 1 42/48
20/75 - 90/48 is -193/120.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 48 is 1200
Next, find the equivalent fraction of both fractional numbers with denominator 1200 - For the 1st fraction, since 75 × 16 = 1200,
20/75 = 20 × 16/75 × 16 = 320/1200 - Likewise, for the 2nd fraction, since 48 × 25 = 1200,
90/48 = 90 × 25/48 × 25 = 2250/1200 - Subtract the two like fractions:
320/1200 - 2250/1200 = 320 - 2250/1200 = -1930/1200 - After reducing the fraction, the answer is -193/120
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/75-90/48 20/75-90/96 60/75-90/48