Add 6/42 and 4/15
6/42 + 4/15 is 43/105.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 15 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 42 × 5 = 210,
6/42 = 6 × 5/42 × 5 = 30/210 - Likewise, for the 2nd fraction, since 15 × 14 = 210,
4/15 = 4 × 14/15 × 14 = 56/210 - Add the two like fractions:
30/210 + 56/210 = 30 + 56/210 = 86/210 - 86/210 simplified gives 43/105
- So, 6/42 + 4/15 = 43/105
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/42+4/15 6/42+8/15 6/84+4/15 6/42+4/30 18/42+4/15 6/42+12/15 6/42+4/45 30/42+4/15 6/42+20/15 6/42+4/75 6/42+28/15