Add 12/36 and 3/45
12/36 + 3/45 is 2/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 45 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 36 × 5 = 180,
12/36 = 12 × 5/36 × 5 = 60/180 - Likewise, for the 2nd fraction, since 45 × 4 = 180,
3/45 = 3 × 4/45 × 4 = 12/180 - Add the two like fractions:
60/180 + 12/180 = 60 + 12/180 = 72/180 - 72/180 simplified gives 2/5
- So, 12/36 + 3/45 = 2/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/36+3/45 12/36+6/45 12/72+3/45 12/36+3/90 12/36+9/45 60/36+3/45 12/36+15/45 84/36+3/45 12/36+21/45