Add 20/15 and 14/42
1st number: 1 5/15, 2nd number: 14/42
20/15 + 14/42 is 5/3.
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,
20/15 = 20 × 14/15 × 14 = 280/210 - Likewise, for the 2nd fraction, since 42 × 5 = 210,
14/42 = 14 × 5/42 × 5 = 70/210 - Add the two like fractions:
280/210 + 70/210 = 280 + 70/210 = 350/210 - 350/210 simplified gives 5/3
- So, 20/15 + 14/42 = 5/3
In mixed form: 12/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/15+14/42 20/15+28/42 20/30+14/42 20/15+14/84 60/15+14/42 20/45+14/42 20/15+70/42 20/75+14/42 20/15+98/42