Add 18/45 and 12/5
1st number: 18/45, 2nd number: 2 2/5
18/45 + 12/5 is 14/5.
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,
12/5 = 12 × 9/5 × 9 = 108/45 - Add the two like fractions:
18/45 + 108/45 = 18 + 108/45 = 126/45 - 126/45 simplified gives 14/5
- So, 18/45 + 12/5 = 14/5
In mixed form: 24/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/45+12/5 18/45+24/5 18/90+12/5 18/45+12/10 54/45+12/5 18/45+36/5 18/45+12/15 90/45+12/5 18/45+60/5 18/45+12/25 18/45+84/5 18/45+12/35