Add 28/42 and 6/8
28/42 + 6/8 is 17/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 8 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 42 × 4 = 168,
28/42 = 28 × 4/42 × 4 = 112/168 - Likewise, for the 2nd fraction, since 8 × 21 = 168,
6/8 = 6 × 21/8 × 21 = 126/168 - Add the two like fractions:
112/168 + 126/168 = 112 + 126/168 = 238/168 - 238/168 simplified gives 17/12
- So, 28/42 + 6/8 = 17/12
In mixed form: 15/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/42+6/8 28/42+12/8 28/84+6/8 28/42+6/16 84/42+6/8 28/42+18/8 28/42+6/24 28/42+30/8 28/42+6/40 28/42+42/8 28/42+6/56