Add 30/8 and 8/80
1st number: 3 6/8, 2nd number: 8/80
30/8 + 8/80 is 77/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 80 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 8 × 10 = 80,
30/8 = 30 × 10/8 × 10 = 300/80 - Likewise, for the 2nd fraction, since 80 × 1 = 80,
8/80 = 8 × 1/80 × 1 = 8/80 - Add the two like fractions:
300/80 + 8/80 = 300 + 8/80 = 308/80 - 308/80 simplified gives 77/20
- So, 30/8 + 8/80 = 77/20
In mixed form: 317/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/8+8/80 30/8+16/80 30/16+8/80 90/8+8/80 30/8+24/80 30/24+8/80 30/8+40/80 30/40+8/80 30/8+56/80 30/56+8/80