Add 80/7 and 42/10
1st number: 11 3/7, 2nd number: 4 2/10
80/7 + 42/10 is 547/35.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 10 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 10 × 7 = 70,
42/10 = 42 × 7/10 × 7 = 294/70 - Add the two like fractions:
800/70 + 294/70 = 800 + 294/70 = 1094/70 - 1094/70 simplified gives 547/35
- So, 80/7 + 42/10 = 547/35
In mixed form: 1522/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/7+84/10 80/14+42/10 80/7+42/20 80/21+42/10 80/7+42/30 80/35+42/10 80/7+42/50 80/49+42/10 80/7+42/70