Add 16/4 and 4/21
1st number: 4 0/4, 2nd number: 4/21
16/4 + 4/21 is 88/21.
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,
16/4 = 16 × 21/4 × 21 = 336/84 - Likewise, for the 2nd fraction, since 21 × 4 = 84,
4/21 = 4 × 4/21 × 4 = 16/84 - Add the two like fractions:
336/84 + 16/84 = 336 + 16/84 = 352/84 - 352/84 simplified gives 88/21
- So, 16/4 + 4/21 = 88/21
In mixed form: 44/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 32/4+4/21 16/4+8/21 16/8+4/21 16/4+4/42 48/4+4/21 16/4+12/21 16/12+4/21 16/4+4/63 80/4+4/21 16/4+20/21 16/20+4/21 16/4+28/21 16/28+4/21