Add 7/42 and 14/70
7/42 + 14/70 is 11/30.
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,
7/42 = 7 × 5/42 × 5 = 35/210 - Likewise, for the 2nd fraction, since 70 × 3 = 210,
14/70 = 14 × 3/70 × 3 = 42/210 - Add the two like fractions:
35/210 + 42/210 = 35 + 42/210 = 77/210 - 77/210 simplified gives 11/30
- So, 7/42 + 14/70 = 11/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/42+14/70 7/42+28/70 7/84+14/70 21/42+14/70 7/42+42/70 35/42+14/70 49/42+14/70 7/42+98/70