Add 84/42 and 18/28
1st number: 2 0/42, 2nd number: 18/28
84/42 + 18/28 is 37/14.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 28 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 42 × 2 = 84,
84/42 = 84 × 2/42 × 2 = 168/84 - Likewise, for the 2nd fraction, since 28 × 3 = 84,
18/28 = 18 × 3/28 × 3 = 54/84 - Add the two like fractions:
168/84 + 54/84 = 168 + 54/84 = 222/84 - 222/84 simplified gives 37/14
- So, 84/42 + 18/28 = 37/14
In mixed form: 29/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/42+36/28 84/42+18/56 84/42+54/28 84/42+18/84 84/42+90/28