Add 5/40 and 80/9
1st number: 5/40, 2nd number: 8 8/9
5/40 + 80/9 is 649/72.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 9 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 40 × 9 = 360,
5/40 = 5 × 9/40 × 9 = 45/360 - Likewise, for the 2nd fraction, since 9 × 40 = 360,
80/9 = 80 × 40/9 × 40 = 3200/360 - Add the two like fractions:
45/360 + 3200/360 = 45 + 3200/360 = 3245/360 - 3245/360 simplified gives 649/72
- So, 5/40 + 80/9 = 649/72
In mixed form: 91/72
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/40+80/9 5/80+80/9 5/40+80/18 15/40+80/9 5/40+80/27 25/40+80/9 5/40+80/45 35/40+80/9 5/40+80/63