Add 18/54 and 5/84
18/54 + 5/84 is 11/28.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 84 is 756
Next, find the equivalent fraction of both fractional numbers with denominator 756 - For the 1st fraction, since 54 × 14 = 756,
18/54 = 18 × 14/54 × 14 = 252/756 - Likewise, for the 2nd fraction, since 84 × 9 = 756,
5/84 = 5 × 9/84 × 9 = 45/756 - Add the two like fractions:
252/756 + 45/756 = 252 + 45/756 = 297/756 - 297/756 simplified gives 11/28
- So, 18/54 + 5/84 = 11/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/54+5/84 18/54+10/84 18/54+15/84 90/54+5/84 18/54+25/84 18/54+35/84