Add 18/45 and 1/30
18/45 + 1/30 is 13/30.
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,
1/30 = 1 × 3/30 × 3 = 3/90 - Add the two like fractions:
36/90 + 3/90 = 36 + 3/90 = 39/90 - 39/90 simplified gives 13/30
- So, 18/45 + 1/30 = 13/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/45+1/30 18/45+2/30 18/90+1/30 18/45+1/60 54/45+1/30 18/45+3/30 18/45+1/90 90/45+1/30 18/45+5/30 18/45+7/30