Add 9/70 and 81/7
1st number: 9/70, 2nd number: 11 4/7
9/70 + 81/7 is 117/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 7 is 70
Next, find the equivalent fraction of both fractional numbers with denominator 70 - For the 1st fraction, since 70 × 1 = 70,
9/70 = 9 × 1/70 × 1 = 9/70 - Likewise, for the 2nd fraction, since 7 × 10 = 70,
81/7 = 81 × 10/7 × 10 = 810/70 - Add the two like fractions:
9/70 + 810/70 = 9 + 810/70 = 819/70 - 819/70 simplified gives 117/10
- So, 9/70 + 81/7 = 117/10
In mixed form: 117/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/70+81/7 9/70+81/14 27/70+81/7 9/70+81/21 45/70+81/7 9/70+81/35 63/70+81/7 9/70+81/49