Add 10/42 and 12/5
1st number: 10/42, 2nd number: 2 2/5
10/42 + 12/5 is 277/105.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 5 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 5 × 42 = 210,
12/5 = 12 × 42/5 × 42 = 504/210 - Add the two like fractions:
50/210 + 504/210 = 50 + 504/210 = 554/210 - 554/210 simplified gives 277/105
- So, 10/42 + 12/5 = 277/105
In mixed form: 267/105
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/42+12/5 10/42+24/5 10/84+12/5 10/42+12/10 30/42+12/5 10/42+36/5 10/42+12/15 50/42+12/5 10/42+60/5 10/42+12/25 70/42+12/5 10/42+84/5 10/42+12/35