Add 3/40 and 18/9
1st number: 3/40, 2nd number: 2 0/9
3/40 + 18/9 is 83/40.
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,
3/40 = 3 × 9/40 × 9 = 27/360 - Likewise, for the 2nd fraction, since 9 × 40 = 360,
18/9 = 18 × 40/9 × 40 = 720/360 - Add the two like fractions:
27/360 + 720/360 = 27 + 720/360 = 747/360 - 747/360 simplified gives 83/40
- So, 3/40 + 18/9 = 83/40
In mixed form: 23/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/40+18/9 3/40+36/9 3/80+18/9 9/40+18/9 3/40+54/9 3/40+18/27 15/40+18/9 3/40+90/9 3/40+18/45 21/40+18/9 3/40+18/63