Add 18/12 and 90/50, Solve 1 6/12 + 1 40/50 as a fraction

Add 18/12 and 90/50

1^st number: 1 6/12, 2^nd number: 1 40/50

18/12 + 90/50 is 33/10.

Find the least common denominator or LCM of the two denominators:
LCM of 12 and 50 is 300

Next, find the equivalent fraction of both fractional numbers with denominator 300
For the 1st fraction, since 12 × 25 = 300,
18/12 = 18 × 25/12 × 25 = 450/300
Likewise, for the 2nd fraction, since 50 × 6 = 300,
90/50 = 90 × 6/50 × 6 = 540/300
Add the two like fractions:
450/300 + 540/300 = 450 + 540/300 = 990/300
990/300 simplified gives 33/10
So, 18/12 + 90/50 = 33/10
In mixed form: 33/10

MathStep (Works offline)

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