Add 2/84 and 27/21
1st number: 2/84, 2nd number: 1 6/21
2/84 + 27/21 is 55/42.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 21 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 84 × 1 = 84,
2/84 = 2 × 1/84 × 1 = 2/84 - Likewise, for the 2nd fraction, since 21 × 4 = 84,
27/21 = 27 × 4/21 × 4 = 108/84 - Add the two like fractions:
2/84 + 108/84 = 2 + 108/84 = 110/84 - 110/84 simplified gives 55/42
- So, 2/84 + 27/21 = 55/42
In mixed form: 113/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/84+27/21 2/84+54/21 2/84+27/42 6/84+27/21 2/84+81/21 2/84+27/63 10/84+27/21 14/84+27/21