Add 20/9 and 12/70
1st number: 2 2/9, 2nd number: 12/70
20/9 + 12/70 is 754/315.
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,
20/9 = 20 × 70/9 × 70 = 1400/630 - Likewise, for the 2nd fraction, since 70 × 9 = 630,
12/70 = 12 × 9/70 × 9 = 108/630 - Add the two like fractions:
1400/630 + 108/630 = 1400 + 108/630 = 1508/630 - 1508/630 simplified gives 754/315
- So, 20/9 + 12/70 = 754/315
In mixed form: 2124/315
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/9+12/70 20/9+24/70 20/18+12/70 60/9+12/70 20/9+36/70 20/27+12/70 20/9+60/70 20/45+12/70 20/9+84/70 20/63+12/70