Add 80/60 and 2/7
1st number: 1 20/60, 2nd number: 2/7
80/60 + 2/7 is 34/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 7 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 60 × 7 = 420,
80/60 = 80 × 7/60 × 7 = 560/420 - Likewise, for the 2nd fraction, since 7 × 60 = 420,
2/7 = 2 × 60/7 × 60 = 120/420 - Add the two like fractions:
560/420 + 120/420 = 560 + 120/420 = 680/420 - 680/420 simplified gives 34/21
- So, 80/60 + 2/7 = 34/21
In mixed form: 113/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/60+4/7 80/60+2/14 80/60+6/7 80/60+2/21 80/60+10/7 80/60+2/35 80/60+14/7 80/60+2/49