Add 30/42 and 35/27
1st number: 30/42, 2nd number: 1 8/27
30/42 + 35/27 is 380/189.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 27 is 378
Next, find the equivalent fraction of both fractional numbers with denominator 378 - For the 1st fraction, since 42 × 9 = 378,
30/42 = 30 × 9/42 × 9 = 270/378 - Likewise, for the 2nd fraction, since 27 × 14 = 378,
35/27 = 35 × 14/27 × 14 = 490/378 - Add the two like fractions:
270/378 + 490/378 = 270 + 490/378 = 760/378 - 760/378 simplified gives 380/189
- So, 30/42 + 35/27 = 380/189
In mixed form: 22/189
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/42+35/27 30/42+70/27 30/84+35/27 30/42+35/54 90/42+35/27 30/42+35/81