Add 42/14 and 10/21
1st number: 3 0/14, 2nd number: 10/21
42/14 + 10/21 is 73/21.
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,
10/21 = 10 × 2/21 × 2 = 20/42 - Add the two like fractions:
126/42 + 20/42 = 126 + 20/42 = 146/42 - 146/42 simplified gives 73/21
- So, 42/14 + 10/21 = 73/21
In mixed form: 310/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/14+10/21 42/14+20/21 42/28+10/21 42/14+10/42 42/14+30/21 42/14+10/63 42/14+50/21 42/70+10/21 42/14+70/21 42/98+10/21