Add 20/80 and 30/5
1st number: 20/80, 2nd number: 6 0/5
20/80 + 30/5 is 25/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 5 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 80 × 1 = 80,
20/80 = 20 × 1/80 × 1 = 20/80 - Likewise, for the 2nd fraction, since 5 × 16 = 80,
30/5 = 30 × 16/5 × 16 = 480/80 - Add the two like fractions:
20/80 + 480/80 = 20 + 480/80 = 500/80 - 500/80 simplified gives 25/4
- So, 20/80 + 30/5 = 25/4
In mixed form: 61/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/80+30/5 20/80+60/5 20/80+30/10 60/80+30/5 20/80+90/5 20/80+30/15 20/80+30/25 20/80+30/35