Add 1/12 and 7/45
1/12 + 7/45 is 43/180.
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,
1/12 = 1 × 15/12 × 15 = 15/180 - Likewise, for the 2nd fraction, since 45 × 4 = 180,
7/45 = 7 × 4/45 × 4 = 28/180 - Add the two like fractions:
15/180 + 28/180 = 15 + 28/180 = 43/180 - So, 1/12 + 7/45 = 43/180
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/12+7/45 1/12+14/45 1/24+7/45 1/12+7/90 3/12+7/45 1/12+21/45 1/36+7/45 5/12+7/45 1/12+35/45 1/60+7/45 7/12+7/45 1/12+49/45 1/84+7/45