Add 28/45 and 9/54
28/45 + 9/54 is 71/90.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 54 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 45 × 6 = 270,
28/45 = 28 × 6/45 × 6 = 168/270 - Likewise, for the 2nd fraction, since 54 × 5 = 270,
9/54 = 9 × 5/54 × 5 = 45/270 - Add the two like fractions:
168/270 + 45/270 = 168 + 45/270 = 213/270 - 213/270 simplified gives 71/90
- So, 28/45 + 9/54 = 71/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/45+9/54 28/45+18/54 28/90+9/54 84/45+9/54 28/45+27/54 28/45+45/54 28/45+63/54