Add 45/27 and 40/6, Solve 1 18/27 + 6 4/6 as a fraction

Add 45/27 and 40/6

1^st number: 1 18/27, 2^nd number: 6 4/6

45/27 + 40/6 is 25/3.

Find the least common denominator or LCM of the two denominators:
LCM of 27 and 6 is 54

Next, find the equivalent fraction of both fractional numbers with denominator 54
For the 1st fraction, since 27 × 2 = 54,
45/27 = 45 × 2/27 × 2 = 90/54
Likewise, for the 2nd fraction, since 6 × 9 = 54,
40/6 = 40 × 9/6 × 9 = 360/54
Add the two like fractions:
90/54 + 360/54 = 90 + 360/54 = 450/54
450/54 simplified gives 25/3
So, 45/27 + 40/6 = 25/3
In mixed form: 81/3

MathStep (Works offline)

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