Add 18/24 and 27/42
18/24 + 27/42 is 39/28.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 24 and 42 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 24 × 7 = 168,
18/24 = 18 × 7/24 × 7 = 126/168 - Likewise, for the 2nd fraction, since 42 × 4 = 168,
27/42 = 27 × 4/42 × 4 = 108/168 - Add the two like fractions:
126/168 + 108/168 = 126 + 108/168 = 234/168 - 234/168 simplified gives 39/28
- So, 18/24 + 27/42 = 39/28
In mixed form: 111/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/24+27/42 18/24+54/42 18/48+27/42 18/24+27/84 54/24+27/42 18/24+81/42 18/72+27/42 90/24+27/42