Add 42/60 and 18/12
1st number: 42/60, 2nd number: 1 6/12
42/60 + 18/12 is 11/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 12 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 60 × 1 = 60,
42/60 = 42 × 1/60 × 1 = 42/60 - Likewise, for the 2nd fraction, since 12 × 5 = 60,
18/12 = 18 × 5/12 × 5 = 90/60 - Add the two like fractions:
42/60 + 90/60 = 42 + 90/60 = 132/60 - 132/60 simplified gives 11/5
- So, 42/60 + 18/12 = 11/5
In mixed form: 21/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/60+18/12 42/60+36/12 42/60+18/24 42/60+54/12 42/60+18/36 42/60+90/12 42/60+18/60 42/60+18/84