Add 8/20 and 84/4
1st number: 8/20, 2nd number: 21 0/4
8/20 + 84/4 is 107/5.
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,
8/20 = 8 × 1/20 × 1 = 8/20 - Likewise, for the 2nd fraction, since 4 × 5 = 20,
84/4 = 84 × 5/4 × 5 = 420/20 - Add the two like fractions:
8/20 + 420/20 = 8 + 420/20 = 428/20 - 428/20 simplified gives 107/5
- So, 8/20 + 84/4 = 107/5
In mixed form: 212/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/20+84/4 8/40+84/4 8/20+84/8 24/20+84/4 8/60+84/4 8/20+84/12 40/20+84/4 8/20+84/20 56/20+84/4 8/20+84/28