Add 3/20 and 80/27, Solve 3/20 + 2 26/27 as a fraction

Add 3/20 and 80/27

1^st number: 3/20, 2^nd number: 2 26/27

3/20 + 80/27 is 1681/540.

Find the least common denominator or LCM of the two denominators:
LCM of 20 and 27 is 540

Next, find the equivalent fraction of both fractional numbers with denominator 540
For the 1st fraction, since 20 × 27 = 540,
3/20 = 3 × 27/20 × 27 = 81/540
Likewise, for the 2nd fraction, since 27 × 20 = 540,
80/27 = 80 × 20/27 × 20 = 1600/540
Add the two like fractions:
81/540 + 1600/540 = 81 + 1600/540 = 1681/540
So, 3/20 + 80/27 = 1681/540
In mixed form: 361/540

MathStep (Works offline)

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