Add 84/9 and 3/40
1st number: 9 3/9, 2nd number: 3/40
84/9 + 3/40 is 1129/120.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 40 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 9 × 40 = 360,
84/9 = 84 × 40/9 × 40 = 3360/360 - Likewise, for the 2nd fraction, since 40 × 9 = 360,
3/40 = 3 × 9/40 × 9 = 27/360 - Add the two like fractions:
3360/360 + 27/360 = 3360 + 27/360 = 3387/360 - 3387/360 simplified gives 1129/120
- So, 84/9 + 3/40 = 1129/120
In mixed form: 949/120
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/9+6/40 84/18+3/40 84/9+3/80 84/9+9/40 84/27+3/40 84/9+15/40 84/45+3/40 84/9+21/40 84/63+3/40