Add 80/21 and 4/14
1st number: 3 17/21, 2nd number: 4/14
80/21 + 4/14 is 86/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 14 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 21 × 2 = 42,
80/21 = 80 × 2/21 × 2 = 160/42 - Likewise, for the 2nd fraction, since 14 × 3 = 42,
4/14 = 4 × 3/14 × 3 = 12/42 - Add the two like fractions:
160/42 + 12/42 = 160 + 12/42 = 172/42 - 172/42 simplified gives 86/21
- So, 80/21 + 4/14 = 86/21
In mixed form: 42/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/21+8/14 80/42+4/14 80/21+4/28 80/21+12/14 80/63+4/14 80/21+4/42 80/21+20/14 80/21+4/70 80/21+28/14 80/21+4/98