Add 20/84 and 84/75
1st number: 20/84, 2nd number: 1 9/75
20/84 + 84/75 is 713/525.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 75 is 2100
Next, find the equivalent fraction of both fractional numbers with denominator 2100 - For the 1st fraction, since 84 × 25 = 2100,
20/84 = 20 × 25/84 × 25 = 500/2100 - Likewise, for the 2nd fraction, since 75 × 28 = 2100,
84/75 = 84 × 28/75 × 28 = 2352/2100 - Add the two like fractions:
500/2100 + 2352/2100 = 500 + 2352/2100 = 2852/2100 - 2852/2100 simplified gives 713/525
- So, 20/84 + 84/75 = 713/525
In mixed form: 1188/525
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/84+84/75 60/84+84/75