Add 45/25 and 21/10
1st number: 1 20/25, 2nd number: 2 1/10
45/25 + 21/10 is 39/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 10 is 50
Next, find the equivalent fraction of both fractional numbers with denominator 50 - For the 1st fraction, since 25 × 2 = 50,
45/25 = 45 × 2/25 × 2 = 90/50 - Likewise, for the 2nd fraction, since 10 × 5 = 50,
21/10 = 21 × 5/10 × 5 = 105/50 - Add the two like fractions:
90/50 + 105/50 = 90 + 105/50 = 195/50 - 195/50 simplified gives 39/10
- So, 45/25 + 21/10 = 39/10
In mixed form: 39/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/25+21/10 45/25+42/10 45/50+21/10 45/25+21/20 45/25+63/10 45/75+21/10 45/25+21/30 45/25+21/50 45/25+21/70