Add 40/12 and 27/70
1st number: 3 4/12, 2nd number: 27/70
40/12 + 27/70 is 781/210.
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,
40/12 = 40 × 35/12 × 35 = 1400/420 - Likewise, for the 2nd fraction, since 70 × 6 = 420,
27/70 = 27 × 6/70 × 6 = 162/420 - Add the two like fractions:
1400/420 + 162/420 = 1400 + 162/420 = 1562/420 - 1562/420 simplified gives 781/210
- So, 40/12 + 27/70 = 781/210
In mixed form: 3151/210
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/12+27/70 40/12+54/70 40/24+27/70 40/12+81/70 40/36+27/70 40/60+27/70 40/84+27/70