Add 12/54 and 15/30
12/54 + 15/30 is 13/18.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 30 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 30 × 9 = 270,
15/30 = 15 × 9/30 × 9 = 135/270 - Add the two like fractions:
60/270 + 135/270 = 60 + 135/270 = 195/270 - 195/270 simplified gives 13/18
- So, 12/54 + 15/30 = 13/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/54+15/30 12/54+15/60 36/54+15/30 12/54+45/30 12/54+15/90 60/54+15/30 12/54+75/30 84/54+15/30