Add 12/9 and 27/70
1st number: 1 3/9, 2nd number: 27/70
12/9 + 27/70 is 361/210.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 70 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 9 × 70 = 630,
12/9 = 12 × 70/9 × 70 = 840/630 - Likewise, for the 2nd fraction, since 70 × 9 = 630,
27/70 = 27 × 9/70 × 9 = 243/630 - Add the two like fractions:
840/630 + 243/630 = 840 + 243/630 = 1083/630 - 1083/630 simplified gives 361/210
- So, 12/9 + 27/70 = 361/210
In mixed form: 1151/210
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/9+27/70 12/9+54/70 12/18+27/70 36/9+27/70 12/9+81/70 12/27+27/70 60/9+27/70 12/45+27/70 84/9+27/70 12/63+27/70