Add 18/90 and 49/54
18/90 + 49/54 is 299/270.
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,
18/90 = 18 × 3/90 × 3 = 54/270 - Likewise, for the 2nd fraction, since 54 × 5 = 270,
49/54 = 49 × 5/54 × 5 = 245/270 - Add the two like fractions:
54/270 + 245/270 = 54 + 245/270 = 299/270 - So, 18/90 + 49/54 = 299/270
In mixed form: 129/270
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/90+49/54 18/90+98/54 54/90+49/54