Add 7/42 and 10/5
1st number: 7/42, 2nd number: 2 0/5
7/42 + 10/5 is 13/6.
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,
7/42 = 7 × 5/42 × 5 = 35/210 - Likewise, for the 2nd fraction, since 5 × 42 = 210,
10/5 = 10 × 42/5 × 42 = 420/210 - Add the two like fractions:
35/210 + 420/210 = 35 + 420/210 = 455/210 - 455/210 simplified gives 13/6
- So, 7/42 + 10/5 = 13/6
In mixed form: 21/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/42+10/5 7/42+20/5 7/84+10/5 21/42+10/5 7/42+30/5 7/42+10/15 35/42+10/5 7/42+50/5 7/42+10/25 49/42+10/5 7/42+70/5 7/42+10/35