Add 9/42 and 90/27
1st number: 9/42, 2nd number: 3 9/27
9/42 + 90/27 is 149/42.
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,
9/42 = 9 × 9/42 × 9 = 81/378 - Likewise, for the 2nd fraction, since 27 × 14 = 378,
90/27 = 90 × 14/27 × 14 = 1260/378 - Add the two like fractions:
81/378 + 1260/378 = 81 + 1260/378 = 1341/378 - 1341/378 simplified gives 149/42
- So, 9/42 + 90/27 = 149/42
In mixed form: 323/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/42+90/27 9/84+90/27 9/42+90/54 27/42+90/27 9/42+90/81 45/42+90/27 63/42+90/27