Add 18/6 and 5/21
1st number: 3 0/6, 2nd number: 5/21
186 + 521 is 6821.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 21 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 6 × 7 = 42,
186 = 18 × 76 × 7 = 12642 - Likewise, for the 2nd fraction, since 21 × 2 = 42,
521 = 5 × 221 × 2 = 1042 - Add the two like fractions:
12642 + 1042 = 126 + 1042 = 13642 - 136/42 simplified gives 6821
- So, 18/6 + 5/21 = 68/21
In mixed form: 3521
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/6+5/21 18/6+10/21 18/12+5/21 18/6+5/42 54/6+5/21 18/6+15/21 18/6+5/63 90/6+5/21 18/6+25/21 18/30+5/21 18/6+35/21 18/42+5/21