Add 18/24 and 40/80
18/24 + 40/80 is 5/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 24 and 80 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 24 × 10 = 240,
18/24 = 18 × 10/24 × 10 = 180/240 - Likewise, for the 2nd fraction, since 80 × 3 = 240,
40/80 = 40 × 3/80 × 3 = 120/240 - Add the two like fractions:
180/240 + 120/240 = 180 + 120/240 = 300/240 - 300/240 simplified gives 5/4
- So, 18/24 + 40/80 = 5/4
In mixed form: 11/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/24+40/80 18/48+40/80 54/24+40/80 18/72+40/80 90/24+40/80