Add 84/4 and 30/5
1st number: 21 0/4, 2nd number: 6 0/5
84/4 + 30/5 is 27/1.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 5 is 20
Next, find the equivalent fraction of both fractional numbers with denominator 20 - For the 1st fraction, since 4 × 5 = 20,
84/4 = 84 × 5/4 × 5 = 420/20 - Likewise, for the 2nd fraction, since 5 × 4 = 20,
30/5 = 30 × 4/5 × 4 = 120/20 - Add the two like fractions:
420/20 + 120/20 = 420 + 120/20 = 540/20 - 540/20 simplified gives 27/1
- So, 84/4 + 30/5 = 27/1
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/4+60/5 84/8+30/5 84/4+30/10 84/4+90/5 84/12+30/5 84/4+30/15 84/20+30/5 84/4+30/25 84/28+30/5 84/4+30/35