Add 12/54 and 3/90
12/54 + 3/90 is 23/90.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 90 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 54 × 5 = 270,
12/54 = 12 × 5/54 × 5 = 60/270 - Likewise, for the 2nd fraction, since 90 × 3 = 270,
3/90 = 3 × 3/90 × 3 = 9/270 - Add the two like fractions:
60/270 + 9/270 = 60 + 9/270 = 69/270 - 69/270 simplified gives 23/90
- So, 12/54 + 3/90 = 23/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/54+3/90 12/54+6/90 36/54+3/90 12/54+9/90 60/54+3/90 12/54+15/90 84/54+3/90 12/54+21/90