Add 30/54 and 42/27
1st number: 30/54, 2nd number: 1 15/27
30/54 + 42/27 is 19/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 27 is 54
Next, find the equivalent fraction of both fractional numbers with denominator 54 - For the 1st fraction, since 54 × 1 = 54,
30/54 = 30 × 1/54 × 1 = 30/54 - Likewise, for the 2nd fraction, since 27 × 2 = 54,
42/27 = 42 × 2/27 × 2 = 84/54 - Add the two like fractions:
30/54 + 84/54 = 30 + 84/54 = 114/54 - 114/54 simplified gives 19/9
- So, 30/54 + 42/27 = 19/9
In mixed form: 21/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/54+42/27 30/54+84/27 30/54+42/54 90/54+42/27 30/54+42/81