Add 27/42 and 28/10
1st number: 27/42, 2nd number: 2 8/10
27/42 + 28/10 is 241/70.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 10 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 42 × 5 = 210,
27/42 = 27 × 5/42 × 5 = 135/210 - Likewise, for the 2nd fraction, since 10 × 21 = 210,
28/10 = 28 × 21/10 × 21 = 588/210 - Add the two like fractions:
135/210 + 588/210 = 135 + 588/210 = 723/210 - 723/210 simplified gives 241/70
- So, 27/42 + 28/10 = 241/70
In mixed form: 331/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/42+28/10 27/42+56/10 27/84+28/10 27/42+28/20 81/42+28/10 27/42+84/10 27/42+28/30 27/42+28/50 27/42+28/70