Add 15/42 and 27/4
1st number: 15/42, 2nd number: 6 3/4
15/42 + 27/4 is 199/28.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 4 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 42 × 2 = 84,
15/42 = 15 × 2/42 × 2 = 30/84 - Likewise, for the 2nd fraction, since 4 × 21 = 84,
27/4 = 27 × 21/4 × 21 = 567/84 - Add the two like fractions:
30/84 + 567/84 = 30 + 567/84 = 597/84 - 597/84 simplified gives 199/28
- So, 15/42 + 27/4 = 199/28
In mixed form: 73/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/42+27/4 15/42+54/4 15/84+27/4 15/42+27/8 45/42+27/4 15/42+81/4 15/42+27/12 75/42+27/4 15/42+27/20 15/42+27/28