Add 10/42 and 27/70
10/42 + 27/70 is 131/210.
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,
10/42 = 10 × 5/42 × 5 = 50/210 - Likewise, for the 2nd fraction, since 70 × 3 = 210,
27/70 = 27 × 3/70 × 3 = 81/210 - Add the two like fractions:
50/210 + 81/210 = 50 + 81/210 = 131/210 - So, 10/42 + 27/70 = 131/210
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/42+27/70 10/42+54/70 10/84+27/70 30/42+27/70 10/42+81/70 50/42+27/70 70/42+27/70