Add 6/15 and 20/42
6/15 + 20/42 is 92/105.
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,
6/15 = 6 × 14/15 × 14 = 84/210 - Likewise, for the 2nd fraction, since 42 × 5 = 210,
20/42 = 20 × 5/42 × 5 = 100/210 - Add the two like fractions:
84/210 + 100/210 = 84 + 100/210 = 184/210 - 184/210 simplified gives 92/105
- So, 6/15 + 20/42 = 92/105
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/15+20/42 6/15+40/42 6/30+20/42 6/15+20/84 18/15+20/42 6/15+60/42 6/45+20/42 30/15+20/42 6/75+20/42 42/15+20/42