Add 30/84 and 54/9
1st number: 30/84, 2nd number: 6 0/9
30/84 + 54/9 is 89/14.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 9 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 84 × 3 = 252,
30/84 = 30 × 3/84 × 3 = 90/252 - Likewise, for the 2nd fraction, since 9 × 28 = 252,
54/9 = 54 × 28/9 × 28 = 1512/252 - Add the two like fractions:
90/252 + 1512/252 = 90 + 1512/252 = 1602/252 - 1602/252 simplified gives 89/14
- So, 30/84 + 54/9 = 89/14
In mixed form: 65/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/84+54/9 30/84+54/18 90/84+54/9 30/84+54/27 30/84+54/45 30/84+54/63