Add 18/42 and 10/27
18/42 + 10/27 is 151/189.
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,
18/42 = 18 × 9/42 × 9 = 162/378 - Likewise, for the 2nd fraction, since 27 × 14 = 378,
10/27 = 10 × 14/27 × 14 = 140/378 - Add the two like fractions:
162/378 + 140/378 = 162 + 140/378 = 302/378 - 302/378 simplified gives 151/189
- So, 18/42 + 10/27 = 151/189
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/42+10/27 18/42+20/27 18/84+10/27 18/42+10/54 54/42+10/27 18/42+30/27 18/42+10/81 90/42+10/27 18/42+50/27 18/42+70/27