Subtract 20/98 from 90/5
1st number: 18 0/5, 2nd number: 20/98
90/5 - 20/98 is 872/49.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 98 is 490
Next, find the equivalent fraction of both fractional numbers with denominator 490 - For the 1st fraction, since 5 × 98 = 490,
90/5 = 90 × 98/5 × 98 = 8820/490 - Likewise, for the 2nd fraction, since 98 × 5 = 490,
20/98 = 20 × 5/98 × 5 = 100/490 - Subtract the two like fractions:
8820/490 - 100/490 = 8820 - 100/490 = 8720/490 - After reducing the fraction, the answer is 872/49
- In mixed form: 1739/49
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/5-40/98 90/10-20/98 90/5-60/98 90/15-20/98 90/25-20/98 90/35-20/98