Add 84/8 and 12/18
1st number: 10 4/8, 2nd number: 12/18
84/8 + 12/18 is 67/6.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 18 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 8 × 9 = 72,
84/8 = 84 × 9/8 × 9 = 756/72 - Likewise, for the 2nd fraction, since 18 × 4 = 72,
12/18 = 12 × 4/18 × 4 = 48/72 - Add the two like fractions:
756/72 + 48/72 = 756 + 48/72 = 804/72 - 804/72 simplified gives 67/6
- So, 84/8 + 12/18 = 67/6
In mixed form: 111/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/8+24/18 84/16+12/18 84/8+12/36 84/8+36/18 84/24+12/18 84/8+12/54 84/8+60/18 84/40+12/18 84/8+12/90 84/8+84/18 84/56+12/18