Add 45/30 and 75/18
1st number: 1 15/30, 2nd number: 4 3/18
45/30 + 75/18 is 17/3.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 18 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 30 × 3 = 90,
45/30 = 45 × 3/30 × 3 = 135/90 - Likewise, for the 2nd fraction, since 18 × 5 = 90,
75/18 = 75 × 5/18 × 5 = 375/90 - Add the two like fractions:
135/90 + 375/90 = 135 + 375/90 = 510/90 - 510/90 simplified gives 17/3
- So, 45/30 + 75/18 = 17/3
In mixed form: 52/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/30+75/18 45/60+75/18 45/30+75/36 45/90+75/18 45/30+75/54 45/30+75/90