Add 30/14 and 15/42
1st number: 2 2/14, 2nd number: 15/42
30/14 + 15/42 is 5/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 42 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 14 × 3 = 42,
30/14 = 30 × 3/14 × 3 = 90/42 - Likewise, for the 2nd fraction, since 42 × 1 = 42,
15/42 = 15 × 1/42 × 1 = 15/42 - Add the two like fractions:
90/42 + 15/42 = 90 + 15/42 = 105/42 - 105/42 simplified gives 5/2
- So, 30/14 + 15/42 = 5/2
In mixed form: 21/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/14+15/42 30/14+30/42 30/28+15/42 30/14+15/84 90/14+15/42 30/14+45/42 30/42+15/42 30/14+75/42 30/70+15/42 30/98+15/42