Add 28/8 and 45/81
1st number: 3 4/8, 2nd number: 45/81
28/8 + 45/81 is 73/18.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 81 is 648
Next, find the equivalent fraction of both fractional numbers with denominator 648 - For the 1st fraction, since 8 × 81 = 648,
28/8 = 28 × 81/8 × 81 = 2268/648 - Likewise, for the 2nd fraction, since 81 × 8 = 648,
45/81 = 45 × 8/81 × 8 = 360/648 - Add the two like fractions:
2268/648 + 360/648 = 2268 + 360/648 = 2628/648 - 2628/648 simplified gives 73/18
- So, 28/8 + 45/81 = 73/18
In mixed form: 41/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/8+45/81 28/8+90/81 28/16+45/81 84/8+45/81 28/24+45/81 28/40+45/81 28/56+45/81