Add 18/12 and 36/45
1st number: 1 6/12, 2nd number: 36/45
18/12 + 36/45 is 23/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 45 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 12 × 15 = 180,
18/12 = 18 × 15/12 × 15 = 270/180 - Likewise, for the 2nd fraction, since 45 × 4 = 180,
36/45 = 36 × 4/45 × 4 = 144/180 - Add the two like fractions:
270/180 + 144/180 = 270 + 144/180 = 414/180 - 414/180 simplified gives 23/10
- So, 18/12 + 36/45 = 23/10
In mixed form: 23/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/12+36/45 18/12+72/45 18/24+36/45 18/12+36/90 54/12+36/45 18/36+36/45 90/12+36/45 18/60+36/45 18/84+36/45