Add 27/5 and 8/21
1st number: 5 2/5, 2nd number: 8/21
27/5 + 8/21 is 607/105.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 21 is 105
Next, find the equivalent fraction of both fractional numbers with denominator 105 - For the 1st fraction, since 5 × 21 = 105,
27/5 = 27 × 21/5 × 21 = 567/105 - Likewise, for the 2nd fraction, since 21 × 5 = 105,
8/21 = 8 × 5/21 × 5 = 40/105 - Add the two like fractions:
567/105 + 40/105 = 567 + 40/105 = 607/105 - So, 27/5 + 8/21 = 607/105
In mixed form: 582/105
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/5+8/21 27/5+16/21 27/10+8/21 27/5+8/42 81/5+8/21 27/5+24/21 27/15+8/21 27/5+8/63 27/5+40/21 27/25+8/21 27/5+56/21 27/35+8/21