Add 4/10 and 21/25
4/10 + 21/25 is 31/25.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 25 is 50
Next, find the equivalent fraction of both fractional numbers with denominator 50 - For the 1st fraction, since 10 × 5 = 50,
4/10 = 4 × 5/10 × 5 = 20/50 - Likewise, for the 2nd fraction, since 25 × 2 = 50,
21/25 = 21 × 2/25 × 2 = 42/50 - Add the two like fractions:
20/50 + 42/50 = 20 + 42/50 = 62/50 - 62/50 simplified gives 31/25
- So, 4/10 + 21/25 = 31/25
In mixed form: 16/25
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/10+21/25 4/10+42/25 4/20+21/25 4/10+21/50 12/10+21/25 4/10+63/25 4/30+21/25 4/10+21/75 20/10+21/25 4/50+21/25 28/10+21/25 4/70+21/25