Add 3/42 and 80/10
1st number: 3/42, 2nd number: 8 0/10
3/42 + 80/10 is 113/14.
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,
80/10 = 80 × 21/10 × 21 = 1680/210 - Add the two like fractions:
15/210 + 1680/210 = 15 + 1680/210 = 1695/210 - 1695/210 simplified gives 113/14
- So, 3/42 + 80/10 = 113/14
In mixed form: 81/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/42+80/10 3/84+80/10 3/42+80/20 9/42+80/10 3/42+80/30 15/42+80/10 3/42+80/50 21/42+80/10 3/42+80/70