Add 18/45 and 4/5
18/45 + 4/5 is 6/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 5 is 45
Next, find the equivalent fraction of both fractional numbers with denominator 45 - For the 1st fraction, since 45 × 1 = 45,
18/45 = 18 × 1/45 × 1 = 18/45 - Likewise, for the 2nd fraction, since 5 × 9 = 45,
4/5 = 4 × 9/5 × 9 = 36/45 - Add the two like fractions:
18/45 + 36/45 = 18 + 36/45 = 54/45 - 54/45 simplified gives 6/5
- So, 18/45 + 4/5 = 6/5
In mixed form: 11/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/45+4/5 18/45+8/5 18/90+4/5 18/45+4/10 54/45+4/5 18/45+12/5 18/45+4/15 90/45+4/5 18/45+20/5 18/45+4/25 18/45+28/5 18/45+4/35