Add 24/21 and 8/72
1st number: 1 3/21, 2nd number: 8/72
24/21 + 8/72 is 79/63.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 72 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 21 × 24 = 504,
24/21 = 24 × 24/21 × 24 = 576/504 - Likewise, for the 2nd fraction, since 72 × 7 = 504,
8/72 = 8 × 7/72 × 7 = 56/504 - Add the two like fractions:
576/504 + 56/504 = 576 + 56/504 = 632/504 - 632/504 simplified gives 79/63
- So, 24/21 + 8/72 = 79/63
In mixed form: 116/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 48/21+8/72 24/21+16/72 24/42+8/72 72/21+8/72 24/21+24/72 24/63+8/72 24/21+40/72 24/21+56/72