Add 24/84 and 8/21
24/84 + 8/21 is 2/3.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 21 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 84 × 1 = 84,
24/84 = 24 × 1/84 × 1 = 24/84 - Likewise, for the 2nd fraction, since 21 × 4 = 84,
8/21 = 8 × 4/21 × 4 = 32/84 - Add the two like fractions:
24/84 + 32/84 = 24 + 32/84 = 56/84 - 56/84 simplified gives 2/3
- So, 24/84 + 8/21 = 2/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 48/84+8/21 24/84+16/21 24/84+8/42 72/84+8/21 24/84+24/21 24/84+8/63 24/84+40/21 24/84+56/21