Add 84/14 and 1/21
1st number: 6 0/14, 2nd number: 1/21
84/14 + 1/21 is 127/21.
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,
84/14 = 84 × 3/14 × 3 = 252/42 - Likewise, for the 2nd fraction, since 21 × 2 = 42,
1/21 = 1 × 2/21 × 2 = 2/42 - Add the two like fractions:
252/42 + 2/42 = 252 + 2/42 = 254/42 - 254/42 simplified gives 127/21
- So, 84/14 + 1/21 = 127/21
In mixed form: 61/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/14+2/21 84/28+1/21 84/14+1/42 84/14+3/21 84/42+1/21 84/14+1/63 84/14+5/21 84/70+1/21 84/14+7/21 84/98+1/21