Add 21/2 and 6/84
1st number: 10 1/2, 2nd number: 6/84
21/2 + 6/84 is 74/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 84 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 2 × 42 = 84,
21/2 = 21 × 42/2 × 42 = 882/84 - Likewise, for the 2nd fraction, since 84 × 1 = 84,
6/84 = 6 × 1/84 × 1 = 6/84 - Add the two like fractions:
882/84 + 6/84 = 882 + 6/84 = 888/84 - 888/84 simplified gives 74/7
- So, 21/2 + 6/84 = 74/7
In mixed form: 104/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/2+6/84 21/2+12/84 21/4+6/84 63/2+6/84 21/2+18/84 21/6+6/84 21/2+30/84 21/10+6/84 21/2+42/84 21/14+6/84