Add 18/30 and 45/75
18/30 + 45/75 is 6/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 75 is 150
Next, find the equivalent fraction of both fractional numbers with denominator 150 - For the 1st fraction, since 30 × 5 = 150,
18/30 = 18 × 5/30 × 5 = 90/150 - Likewise, for the 2nd fraction, since 75 × 2 = 150,
45/75 = 45 × 2/75 × 2 = 90/150 - Add the two like fractions:
90/150 + 90/150 = 90 + 90/150 = 180/150 - 180/150 simplified gives 6/5
- So, 18/30 + 45/75 = 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: 36/30+45/75 18/30+90/75 18/60+45/75 54/30+45/75 18/90+45/75 90/30+45/75