Add 36/18 and 3/45
1st number: 2 0/18, 2nd number: 3/45
36/18 + 3/45 is 31/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 45 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 18 × 5 = 90,
36/18 = 36 × 5/18 × 5 = 180/90 - Likewise, for the 2nd fraction, since 45 × 2 = 90,
3/45 = 3 × 2/45 × 2 = 6/90 - Add the two like fractions:
180/90 + 6/90 = 180 + 6/90 = 186/90 - 186/90 simplified gives 31/15
- So, 36/18 + 3/45 = 31/15
In mixed form: 21/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/18+3/45 36/18+6/45 36/18+3/90 36/18+9/45 36/54+3/45 36/18+15/45 36/90+3/45 36/18+21/45