Add 15/42 and 2/7
15/42 + 2/7 is 9/14.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 7 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 42 × 1 = 42,
15/42 = 15 × 1/42 × 1 = 15/42 - Likewise, for the 2nd fraction, since 7 × 6 = 42,
2/7 = 2 × 6/7 × 6 = 12/42 - Add the two like fractions:
15/42 + 12/42 = 15 + 12/42 = 27/42 - 27/42 simplified gives 9/14
- So, 15/42 + 2/7 = 9/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/42+2/7 15/42+4/7 15/84+2/7 15/42+2/14 45/42+2/7 15/42+6/7 15/42+2/21 75/42+2/7 15/42+10/7 15/42+2/35 15/42+14/7 15/42+2/49