Add 15/12 and 27/70
1st number: 1 3/12, 2nd number: 27/70
15/12 + 27/70 is 229/140.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 70 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 12 × 35 = 420,
15/12 = 15 × 35/12 × 35 = 525/420 - Likewise, for the 2nd fraction, since 70 × 6 = 420,
27/70 = 27 × 6/70 × 6 = 162/420 - Add the two like fractions:
525/420 + 162/420 = 525 + 162/420 = 687/420 - 687/420 simplified gives 229/140
- So, 15/12 + 27/70 = 229/140
In mixed form: 189/140
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/12+27/70 15/12+54/70 15/24+27/70 45/12+27/70 15/12+81/70 15/36+27/70 75/12+27/70 15/60+27/70 15/84+27/70