Add 1/42 and 40/15
1st number: 1/42, 2nd number: 2 10/15
1/42 + 40/15 is 113/42.
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,
1/42 = 1 × 5/42 × 5 = 5/210 - Likewise, for the 2nd fraction, since 15 × 14 = 210,
40/15 = 40 × 14/15 × 14 = 560/210 - Add the two like fractions:
5/210 + 560/210 = 5 + 560/210 = 565/210 - 565/210 simplified gives 113/42
- So, 1/42 + 40/15 = 113/42
In mixed form: 229/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/42+40/15 1/42+80/15 1/84+40/15 1/42+40/30 3/42+40/15 1/42+40/45 5/42+40/15 1/42+40/75 7/42+40/15