Add 28/84 and 1/42
28/84 + 1/42 is 5/14.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 42 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 84 × 1 = 84,
28/84 = 28 × 1/84 × 1 = 28/84 - Likewise, for the 2nd fraction, since 42 × 2 = 84,
1/42 = 1 × 2/42 × 2 = 2/84 - Add the two like fractions:
28/84 + 2/84 = 28 + 2/84 = 30/84 - 30/84 simplified gives 5/14
- So, 28/84 + 1/42 = 5/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/84+1/42 28/84+2/42 28/84+1/84 28/84+3/42 28/84+5/42 28/84+7/42