Add 3/42 and 2/10
3/42 + 2/10 is 19/70.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 10 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 42 × 5 = 210,
3/42 = 3 × 5/42 × 5 = 15/210 - Likewise, for the 2nd fraction, since 10 × 21 = 210,
2/10 = 2 × 21/10 × 21 = 42/210 - Add the two like fractions:
15/210 + 42/210 = 15 + 42/210 = 57/210 - 57/210 simplified gives 19/70
- So, 3/42 + 2/10 = 19/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/42+2/10 3/42+4/10 3/84+2/10 3/42+2/20 9/42+2/10 3/42+6/10 3/42+2/30 15/42+2/10 3/42+2/50 21/42+2/10 3/42+14/10 3/42+2/70