Add 48/28 and 84/81
1st number: 1 20/28, 2nd number: 1 3/81
48/28 + 84/81 is 520/189.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 81 is 2268
Next, find the equivalent fraction of both fractional numbers with denominator 2268 - For the 1st fraction, since 28 × 81 = 2268,
48/28 = 48 × 81/28 × 81 = 3888/2268 - Likewise, for the 2nd fraction, since 81 × 28 = 2268,
84/81 = 84 × 28/81 × 28 = 2352/2268 - Add the two like fractions:
3888/2268 + 2352/2268 = 3888 + 2352/2268 = 6240/2268 - 6240/2268 simplified gives 520/189
- So, 48/28 + 84/81 = 520/189
In mixed form: 2142/189
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 96/28+84/81 48/56+84/81 48/84+84/81