Add 16/14 and 12/21
1st number: 1 2/14, 2nd number: 12/21
16/14 + 12/21 is 12/7.
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,
16/14 = 16 × 3/14 × 3 = 48/42 - Likewise, for the 2nd fraction, since 21 × 2 = 42,
12/21 = 12 × 2/21 × 2 = 24/42 - Add the two like fractions:
48/42 + 24/42 = 48 + 24/42 = 72/42 - 72/42 simplified gives 12/7
- So, 16/14 + 12/21 = 12/7
In mixed form: 15/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 32/14+12/21 16/14+24/21 16/28+12/21 16/14+12/42 48/14+12/21 16/14+36/21 16/42+12/21 16/14+12/63 80/14+12/21 16/14+60/21 16/70+12/21 16/14+84/21 16/98+12/21