Add 18/75 and 42/9, Solve 18/75 + 4 6/9 as a fraction

Add 18/75 and 42/9

1^st number: 18/75, 2^nd number: 4 6/9

18/75 + 42/9 is 368/75.

Find the least common denominator or LCM of the two denominators:
LCM of 75 and 9 is 225

Next, find the equivalent fraction of both fractional numbers with denominator 225
For the 1st fraction, since 75 × 3 = 225,
18/75 = 18 × 3/75 × 3 = 54/225
Likewise, for the 2nd fraction, since 9 × 25 = 225,
42/9 = 42 × 25/9 × 25 = 1050/225
Add the two like fractions:
54/225 + 1050/225 = 54 + 1050/225 = 1104/225
1104/225 simplified gives 368/75
So, 18/75 + 42/9 = 368/75
In mixed form: 468/75

MathStep (Works offline)

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