Add 18/4 and 8/18
1st number: 4 2/4, 2nd number: 8/18
18/4 + 8/18 is 89/18.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 18 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 4 × 9 = 36,
18/4 = 18 × 9/4 × 9 = 162/36 - Likewise, for the 2nd fraction, since 18 × 2 = 36,
8/18 = 8 × 2/18 × 2 = 16/36 - Add the two like fractions:
162/36 + 16/36 = 162 + 16/36 = 178/36 - 178/36 simplified gives 89/18
- So, 18/4 + 8/18 = 89/18
In mixed form: 417/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/4+8/18 18/4+16/18 18/8+8/18 18/4+8/36 54/4+8/18 18/4+24/18 18/12+8/18 18/4+8/54 90/4+8/18 18/4+40/18 18/20+8/18 18/4+8/90 18/4+56/18 18/28+8/18