Add 75/45 and 4/18
1st number: 1 30/45, 2nd number: 4/18
75/45 + 4/18 is 17/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 18 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 45 × 2 = 90,
75/45 = 75 × 2/45 × 2 = 150/90 - Likewise, for the 2nd fraction, since 18 × 5 = 90,
4/18 = 4 × 5/18 × 5 = 20/90 - Add the two like fractions:
150/90 + 20/90 = 150 + 20/90 = 170/90 - 170/90 simplified gives 17/9
- So, 75/45 + 4/18 = 17/9
In mixed form: 18/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 75/45+8/18 75/90+4/18 75/45+4/36 75/45+12/18 75/45+4/54 75/45+20/18 75/45+4/90 75/45+28/18