Add 75/84 and 20/12
1st number: 75/84, 2nd number: 1 8/12
75/84 + 20/12 is 215/84.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 12 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 84 × 1 = 84,
75/84 = 75 × 1/84 × 1 = 75/84 - Likewise, for the 2nd fraction, since 12 × 7 = 84,
20/12 = 20 × 7/12 × 7 = 140/84 - Add the two like fractions:
75/84 + 140/84 = 75 + 140/84 = 215/84 - So, 75/84 + 20/12 = 215/84
In mixed form: 247/84
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 75/84+40/12 75/84+20/24 75/84+60/12 75/84+20/36 75/84+20/60 75/84+20/84