Subtract 8/5 from 90/98
1st number: 90/98, 2nd number: 1 3/5
90/98 - 8/5 is -167/245.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 98 and 5 is 490
Next, find the equivalent fraction of both fractional numbers with denominator 490 - For the 1st fraction, since 98 × 5 = 490,
90/98 = 90 × 5/98 × 5 = 450/490 - Likewise, for the 2nd fraction, since 5 × 98 = 490,
8/5 = 8 × 98/5 × 98 = 784/490 - Subtract the two like fractions:
450/490 - 784/490 = 450 - 784/490 = -334/490 - After reducing the fraction, the answer is -167/245
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/98-16/5 90/98-8/10 90/98-24/5 90/98-8/15 90/98-40/5 90/98-8/25 90/98-56/5 90/98-8/35