Add 70/84 and 5/9
70/84 + 5/9 is 25/18.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 9 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 84 × 3 = 252,
70/84 = 70 × 3/84 × 3 = 210/252 - Likewise, for the 2nd fraction, since 9 × 28 = 252,
5/9 = 5 × 28/9 × 28 = 140/252 - Add the two like fractions:
210/252 + 140/252 = 210 + 140/252 = 350/252 - 350/252 simplified gives 25/18
- So, 70/84 + 5/9 = 25/18
In mixed form: 17/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/84+10/9 70/84+5/18 70/84+15/9 70/84+5/27 70/84+25/9 70/84+5/45 70/84+35/9 70/84+5/63