Add 80/70 and 2/7
1st number: 1 10/70, 2nd number: 2/7
80/70 + 2/7 is 10/7.
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,
80/70 = 80 × 1/70 × 1 = 80/70 - Likewise, for the 2nd fraction, since 7 × 10 = 70,
2/7 = 2 × 10/7 × 10 = 20/70 - Add the two like fractions:
80/70 + 20/70 = 80 + 20/70 = 100/70 - 100/70 simplified gives 10/7
- So, 80/70 + 2/7 = 10/7
In mixed form: 13/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/70+4/7 80/70+2/14 80/70+6/7 80/70+2/21 80/70+10/7 80/70+2/35 80/70+14/7 80/70+2/49