Add 3/42 and 24/70
3/42 + 24/70 is 29/70.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 70 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 70 × 3 = 210,
24/70 = 24 × 3/70 × 3 = 72/210 - Add the two like fractions:
15/210 + 72/210 = 15 + 72/210 = 87/210 - 87/210 simplified gives 29/70
- So, 3/42 + 24/70 = 29/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/42+24/70 3/42+48/70 3/84+24/70 9/42+24/70 3/42+72/70 15/42+24/70 21/42+24/70