Add 54/84 and 30/12
1st number: 54/84, 2nd number: 2 6/12
54/84 + 30/12 is 22/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 12 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 84 × 1 = 84,
54/84 = 54 × 1/84 × 1 = 54/84 - Likewise, for the 2nd fraction, since 12 × 7 = 84,
30/12 = 30 × 7/12 × 7 = 210/84 - Add the two like fractions:
54/84 + 210/84 = 54 + 210/84 = 264/84 - 264/84 simplified gives 22/7
- So, 54/84 + 30/12 = 22/7
In mixed form: 31/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/84+60/12 54/84+30/24 54/84+90/12 54/84+30/36 54/84+30/60 54/84+30/84