Add 12/54 and 7/15
12/54 + 7/15 is 31/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 15 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 15 × 18 = 270,
7/15 = 7 × 18/15 × 18 = 126/270 - Add the two like fractions:
60/270 + 126/270 = 60 + 126/270 = 186/270 - 186/270 simplified gives 31/45
- So, 12/54 + 7/15 = 31/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/54+7/15 12/54+14/15 12/54+7/30 36/54+7/15 12/54+21/15 12/54+7/45 60/54+7/15 12/54+35/15 12/54+7/75 84/54+7/15 12/54+49/15