Add 98/63 and 80/90
1st number: 1 35/63, 2nd number: 80/90
98/63 + 80/90 is 22/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 90 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 63 × 10 = 630,
98/63 = 98 × 10/63 × 10 = 980/630 - Likewise, for the 2nd fraction, since 90 × 7 = 630,
80/90 = 80 × 7/90 × 7 = 560/630 - Add the two like fractions:
980/630 + 560/630 = 980 + 560/630 = 1540/630 - 1540/630 simplified gives 22/9
- So, 98/63 + 80/90 = 22/9
In mixed form: 24/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: