Add 18/28 and 8/18
18/28 + 8/18 is 137/126.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 18 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 28 × 9 = 252,
18/28 = 18 × 9/28 × 9 = 162/252 - Likewise, for the 2nd fraction, since 18 × 14 = 252,
8/18 = 8 × 14/18 × 14 = 112/252 - Add the two like fractions:
162/252 + 112/252 = 162 + 112/252 = 274/252 - 274/252 simplified gives 137/126
- So, 18/28 + 8/18 = 137/126
In mixed form: 111/126
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/28+8/18 18/28+16/18 18/56+8/18 18/28+8/36 54/28+8/18 18/28+24/18 18/84+8/18 18/28+8/54 90/28+8/18 18/28+40/18 18/28+8/90 18/28+56/18