Add 30/54 and 3/15
30/54 + 3/15 is 34/45.
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,
30/54 = 30 × 5/54 × 5 = 150/270 - Likewise, for the 2nd fraction, since 15 × 18 = 270,
3/15 = 3 × 18/15 × 18 = 54/270 - Add the two like fractions:
150/270 + 54/270 = 150 + 54/270 = 204/270 - 204/270 simplified gives 34/45
- So, 30/54 + 3/15 = 34/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/54+3/15 30/54+6/15 30/54+3/30 90/54+3/15 30/54+9/15 30/54+3/45 30/54+3/75 30/54+21/15