Add 54/20 and 21/10
1st number: 2 14/20, 2nd number: 2 1/10
54/20 + 21/10 is 24/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 10 is 20
Next, find the equivalent fraction of both fractional numbers with denominator 20 - For the 1st fraction, since 20 × 1 = 20,
54/20 = 54 × 1/20 × 1 = 54/20 - Likewise, for the 2nd fraction, since 10 × 2 = 20,
21/10 = 21 × 2/10 × 2 = 42/20 - Add the two like fractions:
54/20 + 42/20 = 54 + 42/20 = 96/20 - 96/20 simplified gives 24/5
- So, 54/20 + 21/10 = 24/5
In mixed form: 44/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/20+42/10 54/40+21/10 54/20+21/20 54/20+63/10 54/60+21/10 54/20+21/30 54/20+21/50 54/20+21/70