Add 28/70 and 2/9
28/70 + 2/9 is 28/45.
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,
28/70 = 28 × 9/70 × 9 = 252/630 - Likewise, for the 2nd fraction, since 9 × 70 = 630,
2/9 = 2 × 70/9 × 70 = 140/630 - Add the two like fractions:
252/630 + 140/630 = 252 + 140/630 = 392/630 - 392/630 simplified gives 28/45
- So, 28/70 + 2/9 = 28/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/70+2/9 28/70+4/9 28/70+2/18 84/70+2/9 28/70+6/9 28/70+2/27 28/70+10/9 28/70+2/45 28/70+14/9 28/70+2/63