Add 90/80 and 16/9
1st number: 1 10/80, 2nd number: 1 7/9
90/80 + 16/9 is 209/72.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 9 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 80 × 9 = 720,
90/80 = 90 × 9/80 × 9 = 810/720 - Likewise, for the 2nd fraction, since 9 × 80 = 720,
16/9 = 16 × 80/9 × 80 = 1280/720 - Add the two like fractions:
810/720 + 1280/720 = 810 + 1280/720 = 2090/720 - 2090/720 simplified gives 209/72
- So, 90/80 + 16/9 = 209/72
In mixed form: 265/72
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/80+32/9 90/80+16/18 90/80+48/9 90/80+16/27 90/80+80/9 90/80+16/45 90/80+16/63