Add 42/14 and 35/21
1st number: 3 0/14, 2nd number: 1 14/21
42/14 + 35/21 is 14/3.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 21 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 14 × 3 = 42,
42/14 = 42 × 3/14 × 3 = 126/42 - Likewise, for the 2nd fraction, since 21 × 2 = 42,
35/21 = 35 × 2/21 × 2 = 70/42 - Add the two like fractions:
126/42 + 70/42 = 126 + 70/42 = 196/42 - 196/42 simplified gives 14/3
- So, 42/14 + 35/21 = 14/3
In mixed form: 42/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/14+35/21 42/14+70/21 42/28+35/21 42/14+35/42 42/14+35/63 42/70+35/21 42/98+35/21