Add 84/45 and 18/5
1st number: 1 39/45, 2nd number: 3 3/5
84/45 + 18/5 is 82/15.
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,
84/45 = 84 × 1/45 × 1 = 84/45 - Likewise, for the 2nd fraction, since 5 × 9 = 45,
18/5 = 18 × 9/5 × 9 = 162/45 - Add the two like fractions:
84/45 + 162/45 = 84 + 162/45 = 246/45 - 246/45 simplified gives 82/15
- So, 84/45 + 18/5 = 82/15
In mixed form: 57/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/45+36/5 84/90+18/5 84/45+18/10 84/45+54/5 84/45+18/15 84/45+90/5 84/45+18/25 84/45+18/35