Add 18/60 and 27/24, Solve 18/60 + 1 3/24 as a fraction

Add 18/60 and 27/24

1^st number: 18/60, 2^nd number: 1 3/24

18/60 + 27/24 is 57/40.

Find the least common denominator or LCM of the two denominators:
LCM of 60 and 24 is 120

Next, find the equivalent fraction of both fractional numbers with denominator 120
For the 1st fraction, since 60 × 2 = 120,
18/60 = 18 × 2/60 × 2 = 36/120
Likewise, for the 2nd fraction, since 24 × 5 = 120,
27/24 = 27 × 5/24 × 5 = 135/120
Add the two like fractions:
36/120 + 135/120 = 36 + 135/120 = 171/120
171/120 simplified gives 57/40
So, 18/60 + 27/24 = 57/40
In mixed form: 117/40

MathStep (Works offline)

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