Add 72/14 and 15/42
1st number: 5 2/14, 2nd number: 15/42
72/14 + 15/42 is 11/2.
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,
72/14 = 72 × 3/14 × 3 = 216/42 - Likewise, for the 2nd fraction, since 42 × 1 = 42,
15/42 = 15 × 1/42 × 1 = 15/42 - Add the two like fractions:
216/42 + 15/42 = 216 + 15/42 = 231/42 - 231/42 simplified gives 11/2
- So, 72/14 + 15/42 = 11/2
In mixed form: 51/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/14+30/42 72/28+15/42 72/14+15/84 72/14+45/42 72/42+15/42 72/14+75/42 72/70+15/42 72/98+15/42