Add 75/12 and 20/84
1st number: 6 3/12, 2nd number: 20/84
75/12 + 20/84 is 545/84.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 84 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 12 × 7 = 84,
75/12 = 75 × 7/12 × 7 = 525/84 - Likewise, for the 2nd fraction, since 84 × 1 = 84,
20/84 = 20 × 1/84 × 1 = 20/84 - Add the two like fractions:
525/84 + 20/84 = 525 + 20/84 = 545/84 - So, 75/12 + 20/84 = 545/84
In mixed form: 641/84
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 75/12+40/84 75/24+20/84 75/12+60/84 75/36+20/84 75/60+20/84 75/84+20/84