Add 8/4 and 4/21
1st number: 2 0/4, 2nd number: 4/21
8/4 + 4/21 is 46/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 21 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 4 × 21 = 84,
8/4 = 8 × 21/4 × 21 = 168/84 - Likewise, for the 2nd fraction, since 21 × 4 = 84,
4/21 = 4 × 4/21 × 4 = 16/84 - Add the two like fractions:
168/84 + 16/84 = 168 + 16/84 = 184/84 - 184/84 simplified gives 46/21
- So, 8/4 + 4/21 = 46/21
In mixed form: 24/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/4+4/21 8/4+8/21 8/4+4/42 24/4+4/21 8/4+12/21 8/12+4/21 8/4+4/63 40/4+4/21 8/4+20/21 8/20+4/21 56/4+4/21 8/4+28/21 8/28+4/21