Add 8/42 and 3/10
8/42 + 3/10 is 103/210.
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,
8/42 = 8 × 5/42 × 5 = 40/210 - Likewise, for the 2nd fraction, since 10 × 21 = 210,
3/10 = 3 × 21/10 × 21 = 63/210 - Add the two like fractions:
40/210 + 63/210 = 40 + 63/210 = 103/210 - So, 8/42 + 3/10 = 103/210
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/42+3/10 8/42+6/10 8/84+3/10 8/42+3/20 24/42+3/10 8/42+9/10 8/42+3/30 40/42+3/10 8/42+15/10 8/42+3/50 56/42+3/10 8/42+21/10 8/42+3/70