Add 9/24 and 8/21
9/24 + 8/21 is 127/168.
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,
9/24 = 9 × 7/24 × 7 = 63/168 - Likewise, for the 2nd fraction, since 21 × 8 = 168,
8/21 = 8 × 8/21 × 8 = 64/168 - Add the two like fractions:
63/168 + 64/168 = 63 + 64/168 = 127/168 - So, 9/24 + 8/21 = 127/168
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/24+8/21 9/24+16/21 9/48+8/21 9/24+8/42 27/24+8/21 9/24+24/21 9/72+8/21 9/24+8/63 45/24+8/21 9/24+40/21 63/24+8/21 9/24+56/21