Add 25/9 and 81/70
1st number: 2 7/9, 2nd number: 1 11/70
25/9 + 81/70 is 2479/630.
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,
25/9 = 25 × 70/9 × 70 = 1750/630 - Likewise, for the 2nd fraction, since 70 × 9 = 630,
81/70 = 81 × 9/70 × 9 = 729/630 - Add the two like fractions:
1750/630 + 729/630 = 1750 + 729/630 = 2479/630 - So, 25/9 + 81/70 = 2479/630
In mixed form: 3589/630
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/9+81/70 25/18+81/70 75/9+81/70 25/27+81/70 25/45+81/70 25/63+81/70