Add 54/84 and 30/56
54/84 + 30/56 is 33/28.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 56 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 84 × 2 = 168,
54/84 = 54 × 2/84 × 2 = 108/168 - Likewise, for the 2nd fraction, since 56 × 3 = 168,
30/56 = 30 × 3/56 × 3 = 90/168 - Add the two like fractions:
108/168 + 90/168 = 108 + 90/168 = 198/168 - 198/168 simplified gives 33/28
- So, 54/84 + 30/56 = 33/28
In mixed form: 15/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/84+60/56 54/84+90/56