Add 18/80 and 84/10
1st number: 18/80, 2nd number: 8 4/10
18/80 + 84/10 is 69/8.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 10 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 80 × 1 = 80,
18/80 = 18 × 1/80 × 1 = 18/80 - Likewise, for the 2nd fraction, since 10 × 8 = 80,
84/10 = 84 × 8/10 × 8 = 672/80 - Add the two like fractions:
18/80 + 672/80 = 18 + 672/80 = 690/80 - 690/80 simplified gives 69/8
- So, 18/80 + 84/10 = 69/8
In mixed form: 85/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/80+84/10 18/80+84/20 54/80+84/10 18/80+84/30 90/80+84/10 18/80+84/50 18/80+84/70