Add 4/42 and 1/15
4/42 + 1/15 is 17/105.
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,
4/42 = 4 × 5/42 × 5 = 20/210 - Likewise, for the 2nd fraction, since 15 × 14 = 210,
1/15 = 1 × 14/15 × 14 = 14/210 - Add the two like fractions:
20/210 + 14/210 = 20 + 14/210 = 34/210 - 34/210 simplified gives 17/105
- So, 4/42 + 1/15 = 17/105
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/42+1/15 4/42+2/15 4/84+1/15 4/42+1/30 12/42+1/15 4/42+3/15 4/42+1/45 20/42+1/15 4/42+5/15 4/42+1/75 28/42+1/15 4/42+7/15