Add 40/80 and 6/9
40/80 + 6/9 is 7/6.
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,
40/80 = 40 × 9/80 × 9 = 360/720 - Likewise, for the 2nd fraction, since 9 × 80 = 720,
6/9 = 6 × 80/9 × 80 = 480/720 - Add the two like fractions:
360/720 + 480/720 = 360 + 480/720 = 840/720 - 840/720 simplified gives 7/6
- So, 40/80 + 6/9 = 7/6
In mixed form: 11/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/80+12/9 40/80+6/18 40/80+18/9 40/80+6/27 40/80+30/9 40/80+6/45 40/80+42/9 40/80+6/63