Add 84/96 and 4/21
84/96 + 4/21 is 179/168.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 96 and 21 is 672
Next, find the equivalent fraction of both fractional numbers with denominator 672 - For the 1st fraction, since 96 × 7 = 672,
84/96 = 84 × 7/96 × 7 = 588/672 - Likewise, for the 2nd fraction, since 21 × 32 = 672,
4/21 = 4 × 32/21 × 32 = 128/672 - Add the two like fractions:
588/672 + 128/672 = 588 + 128/672 = 716/672 - 716/672 simplified gives 179/168
- So, 84/96 + 4/21 = 179/168
In mixed form: 111/168
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/96+8/21 84/96+4/42 84/96+12/21 84/96+4/63 84/96+20/21 84/96+28/21