Add 2/15 and 40/42
2/15 + 40/42 is 38/35.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 42 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 15 × 14 = 210,
2/15 = 2 × 14/15 × 14 = 28/210 - Likewise, for the 2nd fraction, since 42 × 5 = 210,
40/42 = 40 × 5/42 × 5 = 200/210 - Add the two like fractions:
28/210 + 200/210 = 28 + 200/210 = 228/210 - 228/210 simplified gives 38/35
- So, 2/15 + 40/42 = 38/35
In mixed form: 13/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/15+40/42 2/15+80/42 2/30+40/42 2/15+40/84 6/15+40/42 2/45+40/42 10/15+40/42 2/75+40/42 14/15+40/42