Add 21/30 and 24/10
1st number: 21/30, 2nd number: 2 4/10
21/30 + 24/10 is 31/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 10 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 30 × 1 = 30,
21/30 = 21 × 1/30 × 1 = 21/30 - Likewise, for the 2nd fraction, since 10 × 3 = 30,
24/10 = 24 × 3/10 × 3 = 72/30 - Add the two like fractions:
21/30 + 72/30 = 21 + 72/30 = 93/30 - 93/30 simplified gives 31/10
- So, 21/30 + 24/10 = 31/10
In mixed form: 31/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/30+24/10 21/30+48/10 21/60+24/10 21/30+24/20 63/30+24/10 21/30+72/10 21/90+24/10 21/30+24/30 21/30+24/50 21/30+24/70