Add 5/70 and 12/9
1st number: 5/70, 2nd number: 1 3/9
5/70 + 12/9 is 59/42.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 9 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 70 × 9 = 630,
5/70 = 5 × 9/70 × 9 = 45/630 - Likewise, for the 2nd fraction, since 9 × 70 = 630,
12/9 = 12 × 70/9 × 70 = 840/630 - Add the two like fractions:
45/630 + 840/630 = 45 + 840/630 = 885/630 - 885/630 simplified gives 59/42
- So, 5/70 + 12/9 = 59/42
In mixed form: 117/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/70+12/9 5/70+24/9 5/70+12/18 15/70+12/9 5/70+36/9 5/70+12/27 25/70+12/9 5/70+60/9 5/70+12/45 35/70+12/9 5/70+84/9 5/70+12/63