Add 72/70 and 2/9
1st number: 1 2/70, 2nd number: 2/9
72/70 + 2/9 is 394/315.
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,
72/70 = 72 × 9/70 × 9 = 648/630 - Likewise, for the 2nd fraction, since 9 × 70 = 630,
2/9 = 2 × 70/9 × 70 = 140/630 - Add the two like fractions:
648/630 + 140/630 = 648 + 140/630 = 788/630 - 788/630 simplified gives 394/315
- So, 72/70 + 2/9 = 394/315
In mixed form: 179/315
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/70+4/9 72/70+2/18 72/70+6/9 72/70+2/27 72/70+10/9 72/70+2/45 72/70+14/9 72/70+2/63