Add 4/24 and 8/21
4/24 + 8/21 is 23/42.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 24 and 21 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 24 × 7 = 168,
4/24 = 4 × 7/24 × 7 = 28/168 - Likewise, for the 2nd fraction, since 21 × 8 = 168,
8/21 = 8 × 8/21 × 8 = 64/168 - Add the two like fractions:
28/168 + 64/168 = 28 + 64/168 = 92/168 - 92/168 simplified gives 23/42
- So, 4/24 + 8/21 = 23/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/24+8/21 4/24+16/21 4/48+8/21 4/24+8/42 12/24+8/21 4/24+24/21 4/72+8/21 4/24+8/63 20/24+8/21 4/24+40/21 28/24+8/21 4/24+56/21