Subtract 4/80 from 90/49
1st number: 1 41/49, 2nd number: 4/80
90/49 - 4/80 is 1751/980.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 49 and 80 is 3920
Next, find the equivalent fraction of both fractional numbers with denominator 3920 - For the 1st fraction, since 49 × 80 = 3920,
90/49 = 90 × 80/49 × 80 = 7200/3920 - Likewise, for the 2nd fraction, since 80 × 49 = 3920,
4/80 = 4 × 49/80 × 49 = 196/3920 - Subtract the two like fractions:
7200/3920 - 196/3920 = 7200 - 196/3920 = 7004/3920 - After reducing the fraction, the answer is 1751/980
- In mixed form: 1771/980
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/49-8/80 90/98-4/80 90/49-12/80 90/49-20/80 90/49-28/80