Add 8/7 and 84/27, Solve 1 1/7 + 3 3/27 as a fraction

Add 8/7 and 84/27

1^st number: 1 1/7, 2^nd number: 3 3/27

8/7 + 84/27 is 268/63.

Find the least common denominator or LCM of the two denominators:
LCM of 7 and 27 is 189

Next, find the equivalent fraction of both fractional numbers with denominator 189
For the 1st fraction, since 7 × 27 = 189,
8/7 = 8 × 27/7 × 27 = 216/189
Likewise, for the 2nd fraction, since 27 × 7 = 189,
84/27 = 84 × 7/27 × 7 = 588/189
Add the two like fractions:
216/189 + 588/189 = 216 + 588/189 = 804/189
804/189 simplified gives 268/63
So, 8/7 + 84/27 = 268/63
In mixed form: 416/63

MathStep (Works offline)

Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad