Add 42/60 and 18/15
1st number: 42/60, 2nd number: 1 3/15
42/60 + 18/15 is 19/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 15 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 15 × 4 = 60,
18/15 = 18 × 4/15 × 4 = 72/60 - Add the two like fractions:
42/60 + 72/60 = 42 + 72/60 = 114/60 - 114/60 simplified gives 19/10
- So, 42/60 + 18/15 = 19/10
In mixed form: 19/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/60+18/15 42/60+36/15 42/60+18/30 42/60+54/15 42/60+18/45 42/60+90/15 42/60+18/75