Add 15/9 and 81/70
1st number: 1 6/9, 2nd number: 1 11/70
15/9 + 81/70 is 593/210.
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,
15/9 = 15 × 70/9 × 70 = 1050/630 - Likewise, for the 2nd fraction, since 70 × 9 = 630,
81/70 = 81 × 9/70 × 9 = 729/630 - Add the two like fractions:
1050/630 + 729/630 = 1050 + 729/630 = 1779/630 - 1779/630 simplified gives 593/210
- So, 15/9 + 81/70 = 593/210
In mixed form: 2173/210
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/9+81/70 15/18+81/70 45/9+81/70 15/27+81/70 75/9+81/70 15/45+81/70 15/63+81/70