Add 80/6 and 12/7
1st number: 13 2/6, 2nd number: 1 5/7
80/6 + 12/7 is 316/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 7 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 6 × 7 = 42,
80/6 = 80 × 7/6 × 7 = 560/42 - Likewise, for the 2nd fraction, since 7 × 6 = 42,
12/7 = 12 × 6/7 × 6 = 72/42 - Add the two like fractions:
560/42 + 72/42 = 560 + 72/42 = 632/42 - 632/42 simplified gives 316/21
- So, 80/6 + 12/7 = 316/21
In mixed form: 151/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/6+24/7 80/12+12/7 80/6+12/14 80/6+36/7 80/18+12/7 80/6+12/21 80/6+60/7 80/30+12/7 80/6+12/35 80/6+84/7 80/42+12/7 80/6+12/49