Add 35/21 and 5/42
1st number: 1 14/21, 2nd number: 5/42
35/21 + 5/42 is 25/14.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 42 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 21 × 2 = 42,
35/21 = 35 × 2/21 × 2 = 70/42 - Likewise, for the 2nd fraction, since 42 × 1 = 42,
5/42 = 5 × 1/42 × 1 = 5/42 - Add the two like fractions:
70/42 + 5/42 = 70 + 5/42 = 75/42 - 75/42 simplified gives 25/14
- So, 35/21 + 5/42 = 25/14
In mixed form: 111/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/21+5/42 35/21+10/42 35/42+5/42 35/21+5/84 35/21+15/42 35/63+5/42 35/21+25/42 35/21+35/42