Add 24/15 and 4/21
1st number: 1 9/15, 2nd number: 4/21
24/15 + 4/21 is 188/105.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 21 is 105
Next, find the equivalent fraction of both fractional numbers with denominator 105 - For the 1st fraction, since 15 × 7 = 105,
24/15 = 24 × 7/15 × 7 = 168/105 - Likewise, for the 2nd fraction, since 21 × 5 = 105,
4/21 = 4 × 5/21 × 5 = 20/105 - Add the two like fractions:
168/105 + 20/105 = 168 + 20/105 = 188/105 - So, 24/15 + 4/21 = 188/105
In mixed form: 183/105
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 48/15+4/21 24/15+8/21 24/30+4/21 24/15+4/42 72/15+4/21 24/15+12/21 24/45+4/21 24/15+4/63 24/15+20/21 24/75+4/21 24/15+28/21