Add 54/20 and 84/9
1st number: 2 14/20, 2nd number: 9 3/9
54/20 + 84/9 is 361/30.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 9 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 20 × 9 = 180,
54/20 = 54 × 9/20 × 9 = 486/180 - Likewise, for the 2nd fraction, since 9 × 20 = 180,
84/9 = 84 × 20/9 × 20 = 1680/180 - Add the two like fractions:
486/180 + 1680/180 = 486 + 1680/180 = 2166/180 - 2166/180 simplified gives 361/30
- So, 54/20 + 84/9 = 361/30
In mixed form: 121/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/40+84/9 54/20+84/18 54/60+84/9 54/20+84/27 54/20+84/45 54/20+84/63