Add 18/42 and 24/18
1st number: 18/42, 2nd number: 1 6/18
18/42 + 24/18 is 37/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 18 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 42 × 3 = 126,
18/42 = 18 × 3/42 × 3 = 54/126 - Likewise, for the 2nd fraction, since 18 × 7 = 126,
24/18 = 24 × 7/18 × 7 = 168/126 - Add the two like fractions:
54/126 + 168/126 = 54 + 168/126 = 222/126 - 222/126 simplified gives 37/21
- So, 18/42 + 24/18 = 37/21
In mixed form: 116/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/42+24/18 18/42+48/18 18/84+24/18 18/42+24/36 54/42+24/18 18/42+72/18 18/42+24/54 90/42+24/18 18/42+24/90