Add 84/24 and 40/9
1st number: 3 12/24, 2nd number: 4 4/9
84/24 + 40/9 is 143/18.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 24 and 9 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 24 × 3 = 72,
84/24 = 84 × 3/24 × 3 = 252/72 - Likewise, for the 2nd fraction, since 9 × 8 = 72,
40/9 = 40 × 8/9 × 8 = 320/72 - Add the two like fractions:
252/72 + 320/72 = 252 + 320/72 = 572/72 - 572/72 simplified gives 143/18
- So, 84/24 + 40/9 = 143/18
In mixed form: 717/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/24+80/9 84/48+40/9 84/24+40/18 84/72+40/9 84/24+40/27 84/24+40/45 84/24+40/63