Add 5/42 and 12/10
1st number: 5/42, 2nd number: 1 2/10
5/42 + 12/10 is 277/210.
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,
5/42 = 5 × 5/42 × 5 = 25/210 - Likewise, for the 2nd fraction, since 10 × 21 = 210,
12/10 = 12 × 21/10 × 21 = 252/210 - Add the two like fractions:
25/210 + 252/210 = 25 + 252/210 = 277/210 - So, 5/42 + 12/10 = 277/210
In mixed form: 167/210
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/42+12/10 5/42+24/10 5/84+12/10 5/42+12/20 15/42+12/10 5/42+36/10 5/42+12/30 25/42+12/10 5/42+60/10 5/42+12/50 35/42+12/10 5/42+84/10 5/42+12/70