Add 18/30 and 45/3
1st number: 18/30, 2nd number: 15 0/3
18/30 + 45/3 is 78/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 3 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 30 × 1 = 30,
18/30 = 18 × 1/30 × 1 = 18/30 - Likewise, for the 2nd fraction, since 3 × 10 = 30,
45/3 = 45 × 10/3 × 10 = 450/30 - Add the two like fractions:
18/30 + 450/30 = 18 + 450/30 = 468/30 - 468/30 simplified gives 78/5
- So, 18/30 + 45/3 = 78/5
In mixed form: 153/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/30+45/3 18/30+90/3 18/60+45/3 18/30+45/6 54/30+45/3 18/90+45/3 18/30+45/9 90/30+45/3 18/30+45/15 18/30+45/21