Add 90/45 and 1/18
1st number: 2 0/45, 2nd number: 1/18
90/45 + 1/18 is 37/18.
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,
90/45 = 90 × 2/45 × 2 = 180/90 - Likewise, for the 2nd fraction, since 18 × 5 = 90,
1/18 = 1 × 5/18 × 5 = 5/90 - Add the two like fractions:
180/90 + 5/90 = 180 + 5/90 = 185/90 - 185/90 simplified gives 37/18
- So, 90/45 + 1/18 = 37/18
In mixed form: 21/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/45+2/18 90/45+1/36 90/45+3/18 90/45+1/54 90/45+5/18 90/45+1/90 90/45+7/18