Add 30/42 and 75/12
1st number: 30/42, 2nd number: 6 3/12
30/42 + 75/12 is 195/28.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 12 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 42 × 2 = 84,
30/42 = 30 × 2/42 × 2 = 60/84 - Likewise, for the 2nd fraction, since 12 × 7 = 84,
75/12 = 75 × 7/12 × 7 = 525/84 - Add the two like fractions:
60/84 + 525/84 = 60 + 525/84 = 585/84 - 585/84 simplified gives 195/28
- So, 30/42 + 75/12 = 195/28
In mixed form: 627/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/42+75/12 30/84+75/12 30/42+75/24 90/42+75/12 30/42+75/36 30/42+75/60 30/42+75/84