Add 40/8 and 64/9
1st number: 5 0/8, 2nd number: 7 1/9
40/8 + 64/9 is 109/9.
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,
40/8 = 40 × 9/8 × 9 = 360/72 - Likewise, for the 2nd fraction, since 9 × 8 = 72,
64/9 = 64 × 8/9 × 8 = 512/72 - Add the two like fractions:
360/72 + 512/72 = 360 + 512/72 = 872/72 - 872/72 simplified gives 109/9
- So, 40/8 + 64/9 = 109/9
In mixed form: 121/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/8+64/9 40/16+64/9 40/8+64/18 40/24+64/9 40/8+64/27 40/8+64/45 40/56+64/9 40/8+64/63