Add 84/40 and 28/54
1st number: 2 4/40, 2nd number: 28/54
84/40 + 28/54 is 707/270.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 54 is 1080
Next, find the equivalent fraction of both fractional numbers with denominator 1080 - For the 1st fraction, since 40 × 27 = 1080,
84/40 = 84 × 27/40 × 27 = 2268/1080 - Likewise, for the 2nd fraction, since 54 × 20 = 1080,
28/54 = 28 × 20/54 × 20 = 560/1080 - Add the two like fractions:
2268/1080 + 560/1080 = 2268 + 560/1080 = 2828/1080 - 2828/1080 simplified gives 707/270
- So, 84/40 + 28/54 = 707/270
In mixed form: 2167/270
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/40+56/54 84/80+28/54 84/40+84/54