Add 84/20 and 81/25
1st number: 4 4/20, 2nd number: 3 6/25
84/20 + 81/25 is 186/25.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 25 is 100
Next, find the equivalent fraction of both fractional numbers with denominator 100 - For the 1st fraction, since 20 × 5 = 100,
84/20 = 84 × 5/20 × 5 = 420/100 - Likewise, for the 2nd fraction, since 25 × 4 = 100,
81/25 = 81 × 4/25 × 4 = 324/100 - Add the two like fractions:
420/100 + 324/100 = 420 + 324/100 = 744/100 - 744/100 simplified gives 186/25
- So, 84/20 + 81/25 = 186/25
In mixed form: 711/25
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/40+81/25 84/20+81/50 84/60+81/25 84/20+81/75