Add 21/10 and 30/3
1st number: 2 1/10, 2nd number: 10 0/3
21/10 + 30/3 is 121/10.
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,
30/3 = 30 × 10/3 × 10 = 300/30 - Add the two like fractions:
63/30 + 300/30 = 63 + 300/30 = 363/30 - 363/30 simplified gives 121/10
- So, 21/10 + 30/3 = 121/10
In mixed form: 121/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/10+30/3 21/10+60/3 21/20+30/3 21/10+30/6 63/10+30/3 21/10+90/3 21/30+30/3 21/10+30/9 21/50+30/3 21/10+30/15 21/70+30/3 21/10+30/21