Add 42/56 and 75/18
1st number: 42/56, 2nd number: 4 3/18
42/56 + 75/18 is 59/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 18 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 56 × 9 = 504,
42/56 = 42 × 9/56 × 9 = 378/504 - Likewise, for the 2nd fraction, since 18 × 28 = 504,
75/18 = 75 × 28/18 × 28 = 2100/504 - Add the two like fractions:
378/504 + 2100/504 = 378 + 2100/504 = 2478/504 - 2478/504 simplified gives 59/12
- So, 42/56 + 75/18 = 59/12
In mixed form: 411/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/56+75/18 42/56+75/36 42/56+75/54 42/56+75/90