Add 60/21 and 27/42
1st number: 2 18/21, 2nd number: 27/42
60/21 + 27/42 is 7/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 42 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 21 × 2 = 42,
60/21 = 60 × 2/21 × 2 = 120/42 - Likewise, for the 2nd fraction, since 42 × 1 = 42,
27/42 = 27 × 1/42 × 1 = 27/42 - Add the two like fractions:
120/42 + 27/42 = 120 + 27/42 = 147/42 - 147/42 simplified gives 7/2
- So, 60/21 + 27/42 = 7/2
In mixed form: 31/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/21+54/42 60/42+27/42 60/21+27/84 60/21+81/42 60/63+27/42