Add 24/10 and 40/21
1st number: 2 4/10, 2nd number: 1 19/21
24/10 + 40/21 is 452/105.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 21 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 10 × 21 = 210,
24/10 = 24 × 21/10 × 21 = 504/210 - Likewise, for the 2nd fraction, since 21 × 10 = 210,
40/21 = 40 × 10/21 × 10 = 400/210 - Add the two like fractions:
504/210 + 400/210 = 504 + 400/210 = 904/210 - 904/210 simplified gives 452/105
- So, 24/10 + 40/21 = 452/105
In mixed form: 432/105
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 48/10+40/21 24/10+80/21 24/20+40/21 24/10+40/42 72/10+40/21 24/30+40/21 24/10+40/63 24/50+40/21 24/70+40/21