Add 2/42 and 27/21
1st number: 2/42, 2nd number: 1 6/21
2/42 + 27/21 is 4/3.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 21 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 42 × 1 = 42,
2/42 = 2 × 1/42 × 1 = 2/42 - Likewise, for the 2nd fraction, since 21 × 2 = 42,
27/21 = 27 × 2/21 × 2 = 54/42 - Add the two like fractions:
2/42 + 54/42 = 2 + 54/42 = 56/42 - 56/42 simplified gives 4/3
- So, 2/42 + 27/21 = 4/3
In mixed form: 11/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/42+27/21 2/42+54/21 2/84+27/21 2/42+27/42 6/42+27/21 2/42+81/21 2/42+27/63 10/42+27/21 14/42+27/21