Add 18/72 and 84/8
1st number: 18/72, 2nd number: 10 4/8
18/72 + 84/8 is 43/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 8 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 72 × 1 = 72,
18/72 = 18 × 1/72 × 1 = 18/72 - Likewise, for the 2nd fraction, since 8 × 9 = 72,
84/8 = 84 × 9/8 × 9 = 756/72 - Add the two like fractions:
18/72 + 756/72 = 18 + 756/72 = 774/72 - 774/72 simplified gives 43/4
- So, 18/72 + 84/8 = 43/4
In mixed form: 103/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/72+84/8 18/72+84/16 54/72+84/8 18/72+84/24 90/72+84/8 18/72+84/40 18/72+84/56