Add 84/8 and 12/9
1st number: 10 4/8, 2nd number: 1 3/9
84/8 + 12/9 is 71/6.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 9 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 9 × 8 = 72,
12/9 = 12 × 8/9 × 8 = 96/72 - Add the two like fractions:
756/72 + 96/72 = 756 + 96/72 = 852/72 - 852/72 simplified gives 71/6
- So, 84/8 + 12/9 = 71/6
In mixed form: 115/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/8+24/9 84/16+12/9 84/8+12/18 84/8+36/9 84/24+12/9 84/8+12/27 84/8+60/9 84/40+12/9 84/8+12/45 84/8+84/9 84/56+12/9 84/8+12/63