Add 21/10 and 72/3
1st number: 2 1/10, 2nd number: 24 0/3
21/10 + 72/3 is 261/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 3 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 10 × 3 = 30,
21/10 = 21 × 3/10 × 3 = 63/30 - Likewise, for the 2nd fraction, since 3 × 10 = 30,
72/3 = 72 × 10/3 × 10 = 720/30 - Add the two like fractions:
63/30 + 720/30 = 63 + 720/30 = 783/30 - 783/30 simplified gives 261/10
- So, 21/10 + 72/3 = 261/10
In mixed form: 261/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/10+72/3 21/20+72/3 21/10+72/6 63/10+72/3 21/30+72/3 21/10+72/9 21/50+72/3 21/10+72/15 21/70+72/3 21/10+72/21