Add 10/80 and 7/9
10/80 + 7/9 is 65/72.
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,
10/80 = 10 × 9/80 × 9 = 90/720 - Likewise, for the 2nd fraction, since 9 × 80 = 720,
7/9 = 7 × 80/9 × 80 = 560/720 - Add the two like fractions:
90/720 + 560/720 = 90 + 560/720 = 650/720 - 650/720 simplified gives 65/72
- So, 10/80 + 7/9 = 65/72
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/80+7/9 10/80+14/9 10/80+7/18 30/80+7/9 10/80+21/9 10/80+7/27 50/80+7/9 10/80+35/9 10/80+7/45 70/80+7/9 10/80+49/9 10/80+7/63