Add 90/72 and 5/27, Solve 1 18/72 + 5/27 as a fraction

Add 90/72 and 5/27

1^st number: 1 18/72, 2^nd number: 5/27

90/72 + 5/27 is 155/108.

Find the least common denominator or LCM of the two denominators:
LCM of 72 and 27 is 216

Next, find the equivalent fraction of both fractional numbers with denominator 216
For the 1st fraction, since 72 × 3 = 216,
90/72 = 90 × 3/72 × 3 = 270/216
Likewise, for the 2nd fraction, since 27 × 8 = 216,
5/27 = 5 × 8/27 × 8 = 40/216
Add the two like fractions:
270/216 + 40/216 = 270 + 40/216 = 310/216
310/216 simplified gives 155/108
So, 90/72 + 5/27 = 155/108
In mixed form: 147/108

MathStep (Works offline)

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