Subtract 54/98 from 90/80
1st number: 1 10/80, 2nd number: 54/98
90/80 - 54/98 is 225/392.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 98 is 3920
Next, find the equivalent fraction of both fractional numbers with denominator 3920 - For the 1st fraction, since 80 × 49 = 3920,
90/80 = 90 × 49/80 × 49 = 4410/3920 - Likewise, for the 2nd fraction, since 98 × 40 = 3920,
54/98 = 54 × 40/98 × 40 = 2160/3920 - Subtract the two like fractions:
4410/3920 - 2160/3920 = 4410 - 2160/3920 = 2250/3920 - After reducing the fraction, the answer is 225/392
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: