Add 28/54 and 18/60
28/54 + 18/60 is 221/270.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 60 is 540
Next, find the equivalent fraction of both fractional numbers with denominator 540 - For the 1st fraction, since 54 × 10 = 540,
28/54 = 28 × 10/54 × 10 = 280/540 - Likewise, for the 2nd fraction, since 60 × 9 = 540,
18/60 = 18 × 9/60 × 9 = 162/540 - Add the two like fractions:
280/540 + 162/540 = 280 + 162/540 = 442/540 - 442/540 simplified gives 221/270
- So, 28/54 + 18/60 = 221/270
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/54+18/60 28/54+36/60 84/54+18/60 28/54+54/60 28/54+90/60