Add 21/2 and 5/84
1st number: 10 1/2, 2nd number: 5/84
21/2 + 5/84 is 887/84.
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,
5/84 = 5 × 1/84 × 1 = 5/84 - Add the two like fractions:
882/84 + 5/84 = 882 + 5/84 = 887/84 - So, 21/2 + 5/84 = 887/84
In mixed form: 1047/84
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/2+5/84 21/2+10/84 21/4+5/84 63/2+5/84 21/2+15/84 21/6+5/84 21/2+25/84 21/10+5/84 21/2+35/84 21/14+5/84