Add 6/12 and 42/45
6/12 + 42/45 is 43/30.
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,
6/12 = 6 × 15/12 × 15 = 90/180 - Likewise, for the 2nd fraction, since 45 × 4 = 180,
42/45 = 42 × 4/45 × 4 = 168/180 - Add the two like fractions:
90/180 + 168/180 = 90 + 168/180 = 258/180 - 258/180 simplified gives 43/30
- So, 6/12 + 42/45 = 43/30
In mixed form: 113/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/12+84/45 6/24+42/45 6/12+42/90 18/12+42/45 6/36+42/45 30/12+42/45 6/60+42/45 42/12+42/45 6/84+42/45