Add 18/54 and 4/30
18/54 + 4/30 is 7/15.
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,
18/54 = 18 × 5/54 × 5 = 90/270 - Likewise, for the 2nd fraction, since 30 × 9 = 270,
4/30 = 4 × 9/30 × 9 = 36/270 - Add the two like fractions:
90/270 + 36/270 = 90 + 36/270 = 126/270 - 126/270 simplified gives 7/15
- So, 18/54 + 4/30 = 7/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/54+4/30 18/54+8/30 18/54+4/60 18/54+12/30 18/54+4/90 90/54+4/30 18/54+20/30 18/54+28/30