Add 30/8 and 80/5
1st number: 3 6/8, 2nd number: 16 0/5
30/8 + 80/5 is 79/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 5 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 8 × 5 = 40,
30/8 = 30 × 5/8 × 5 = 150/40 - Likewise, for the 2nd fraction, since 5 × 8 = 40,
80/5 = 80 × 8/5 × 8 = 640/40 - Add the two like fractions:
150/40 + 640/40 = 150 + 640/40 = 790/40 - 790/40 simplified gives 79/4
- So, 30/8 + 80/5 = 79/4
In mixed form: 193/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/8+80/5 30/16+80/5 30/8+80/10 90/8+80/5 30/24+80/5 30/8+80/15 30/40+80/5 30/8+80/25 30/56+80/5 30/8+80/35