Add 75/20 and 84/4
1st number: 3 15/20, 2nd number: 21 0/4
75/20 + 84/4 is 99/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 4 is 20
Next, find the equivalent fraction of both fractional numbers with denominator 20 - For the 1st fraction, since 20 × 1 = 20,
75/20 = 75 × 1/20 × 1 = 75/20 - Likewise, for the 2nd fraction, since 4 × 5 = 20,
84/4 = 84 × 5/4 × 5 = 420/20 - Add the two like fractions:
75/20 + 420/20 = 75 + 420/20 = 495/20 - 495/20 simplified gives 99/4
- So, 75/20 + 84/4 = 99/4
In mixed form: 243/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 75/40+84/4 75/20+84/8 75/60+84/4 75/20+84/12 75/20+84/20 75/20+84/28