Add 18/28 and 28/12
1st number: 18/28, 2nd number: 2 4/12
18/28 + 28/12 is 125/42.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 12 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 28 × 3 = 84,
18/28 = 18 × 3/28 × 3 = 54/84 - Likewise, for the 2nd fraction, since 12 × 7 = 84,
28/12 = 28 × 7/12 × 7 = 196/84 - Add the two like fractions:
54/84 + 196/84 = 54 + 196/84 = 250/84 - 250/84 simplified gives 125/42
- So, 18/28 + 28/12 = 125/42
In mixed form: 241/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/28+28/12 18/28+56/12 18/56+28/12 18/28+28/24 54/28+28/12 18/28+84/12 18/84+28/12 18/28+28/36 90/28+28/12 18/28+28/60 18/28+28/84