Add 20/2 and 84/72
1st number: 10 0/2, 2nd number: 1 12/72
20/2 + 84/72 is 67/6.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 72 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 2 × 36 = 72,
20/2 = 20 × 36/2 × 36 = 720/72 - Likewise, for the 2nd fraction, since 72 × 1 = 72,
84/72 = 84 × 1/72 × 1 = 84/72 - Add the two like fractions:
720/72 + 84/72 = 720 + 84/72 = 804/72 - 804/72 simplified gives 67/6
- So, 20/2 + 84/72 = 67/6
In mixed form: 111/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/2+84/72 20/4+84/72 60/2+84/72 20/6+84/72 20/10+84/72 20/14+84/72