Add 18/45 and 2/30
18/45 + 2/30 is 7/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 30 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 45 × 2 = 90,
18/45 = 18 × 2/45 × 2 = 36/90 - Likewise, for the 2nd fraction, since 30 × 3 = 90,
2/30 = 2 × 3/30 × 3 = 6/90 - Add the two like fractions:
36/90 + 6/90 = 36 + 6/90 = 42/90 - 42/90 simplified gives 7/15
- So, 18/45 + 2/30 = 7/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/45+2/30 18/45+4/30 18/90+2/30 18/45+2/60 54/45+2/30 18/45+6/30 18/45+2/90 90/45+2/30 18/45+10/30 18/45+14/30