Add 90/8 and 10/9
1st number: 11 2/8, 2nd number: 1 1/9
90/8 + 10/9 is 445/36.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 9 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 8 × 9 = 72,
90/8 = 90 × 9/8 × 9 = 810/72 - Likewise, for the 2nd fraction, since 9 × 8 = 72,
10/9 = 10 × 8/9 × 8 = 80/72 - Add the two like fractions:
810/72 + 80/72 = 810 + 80/72 = 890/72 - 890/72 simplified gives 445/36
- So, 90/8 + 10/9 = 445/36
In mixed form: 1213/36
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/8+20/9 90/16+10/9 90/8+10/18 90/8+30/9 90/24+10/9 90/8+10/27 90/8+50/9 90/40+10/9 90/8+10/45 90/8+70/9 90/56+10/9 90/8+10/63