Add 9/42 and 36/25, Solve 9/42 + 1 11/25 as a fraction

Add 9/42 and 36/25

1^st number: 9/42, 2^nd number: 1 11/25

9/42 + 36/25 is 579/350.

Find the least common denominator or LCM of the two denominators:
LCM of 42 and 25 is 1050

Next, find the equivalent fraction of both fractional numbers with denominator 1050
For the 1st fraction, since 42 × 25 = 1050,
9/42 = 9 × 25/42 × 25 = 225/1050
Likewise, for the 2nd fraction, since 25 × 42 = 1050,
36/25 = 36 × 42/25 × 42 = 1512/1050
Add the two like fractions:
225/1050 + 1512/1050 = 225 + 1512/1050 = 1737/1050
1737/1050 simplified gives 579/350
So, 9/42 + 36/25 = 579/350
In mixed form: 1229/350

MathStep (Works offline)

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