Add 45/25 and 15/27, Solve 1 20/25 + 15/27 as a fraction

Add 45/25 and 15/27

1^st number: 1 20/25, 2^nd number: 15/27

45/25 + 15/27 is 106/45.

Find the least common denominator or LCM of the two denominators:
LCM of 25 and 27 is 675

Next, find the equivalent fraction of both fractional numbers with denominator 675
For the 1st fraction, since 25 × 27 = 675,
45/25 = 45 × 27/25 × 27 = 1215/675
Likewise, for the 2nd fraction, since 27 × 25 = 675,
15/27 = 15 × 25/27 × 25 = 375/675
Add the two like fractions:
1215/675 + 375/675 = 1215 + 375/675 = 1590/675
1590/675 simplified gives 106/45
So, 45/25 + 15/27 = 106/45
In mixed form: 216/45

MathStep (Works offline)

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