Add 80/7 and 63/70
1st number: 11 3/7, 2nd number: 63/70
80/7 + 63/70 is 863/70.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 70 is 70
Next, find the equivalent fraction of both fractional numbers with denominator 70 - For the 1st fraction, since 7 × 10 = 70,
80/7 = 80 × 10/7 × 10 = 800/70 - Likewise, for the 2nd fraction, since 70 × 1 = 70,
63/70 = 63 × 1/70 × 1 = 63/70 - Add the two like fractions:
800/70 + 63/70 = 800 + 63/70 = 863/70 - So, 80/7 + 63/70 = 863/70
In mixed form: 1223/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/14+63/70 80/21+63/70 80/35+63/70 80/49+63/70