Add 28/90 and 56/54
1st number: 28/90, 2nd number: 1 2/54
28/90 + 56/54 is 182/135.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 54 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 90 × 3 = 270,
28/90 = 28 × 3/90 × 3 = 84/270 - Likewise, for the 2nd fraction, since 54 × 5 = 270,
56/54 = 56 × 5/54 × 5 = 280/270 - Add the two like fractions:
84/270 + 280/270 = 84 + 280/270 = 364/270 - 364/270 simplified gives 182/135
- So, 28/90 + 56/54 = 182/135
In mixed form: 147/135
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/90+56/54 84/90+56/54