Add 75/60 and 20/75, Solve 1 15/60 + 20/75 as a fraction

Add 75/60 and 20/75

1^st number: 1 15/60, 2^nd number: 20/75

75/60 + 20/75 is 91/60.

Find the least common denominator or LCM of the two denominators:
LCM of 60 and 75 is 300

Next, find the equivalent fraction of both fractional numbers with denominator 300
For the 1st fraction, since 60 × 5 = 300,
75/60 = 75 × 5/60 × 5 = 375/300
Likewise, for the 2nd fraction, since 75 × 4 = 300,
20/75 = 20 × 4/75 × 4 = 80/300
Add the two like fractions:
375/300 + 80/300 = 375 + 80/300 = 455/300
455/300 simplified gives 91/60
So, 75/60 + 20/75 = 91/60
In mixed form: 131/60

MathStep (Works offline)

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