Add 84/30 and 80/54
1st number: 2 24/30, 2nd number: 1 26/54
84/30 + 80/54 is 578/135.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 54 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 30 × 9 = 270,
84/30 = 84 × 9/30 × 9 = 756/270 - Likewise, for the 2nd fraction, since 54 × 5 = 270,
80/54 = 80 × 5/54 × 5 = 400/270 - Add the two like fractions:
756/270 + 400/270 = 756 + 400/270 = 1156/270 - 1156/270 simplified gives 578/135
- So, 84/30 + 80/54 = 578/135
In mixed form: 438/135
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/60+80/54 84/90+80/54