Add 80/35 and 20/60
1st number: 2 10/35, 2nd number: 20/60
80/35 + 20/60 is 55/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 60 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 35 × 12 = 420,
80/35 = 80 × 12/35 × 12 = 960/420 - Likewise, for the 2nd fraction, since 60 × 7 = 420,
20/60 = 20 × 7/60 × 7 = 140/420 - Add the two like fractions:
960/420 + 140/420 = 960 + 140/420 = 1100/420 - 1100/420 simplified gives 55/21
- So, 80/35 + 20/60 = 55/21
In mixed form: 213/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/35+40/60 80/70+20/60