Add 90/50 and 20/98
1st number: 1 40/50, 2nd number: 20/98
90/50 + 20/98 is 491/245.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 50 and 98 is 2450
Next, find the equivalent fraction of both fractional numbers with denominator 2450 - For the 1st fraction, since 50 × 49 = 2450,
90/50 = 90 × 49/50 × 49 = 4410/2450 - Likewise, for the 2nd fraction, since 98 × 25 = 2450,
20/98 = 20 × 25/98 × 25 = 500/2450 - Add the two like fractions:
4410/2450 + 500/2450 = 4410 + 500/2450 = 4910/2450 - 4910/2450 simplified gives 491/245
- So, 90/50 + 20/98 = 491/245
In mixed form: 21/245
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/50+40/98 90/50+60/98