Add 16/25 and 21/45
16/25 + 21/45 is 83/75.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 45 is 225
Next, find the equivalent fraction of both fractional numbers with denominator 225 - For the 1st fraction, since 25 × 9 = 225,
16/25 = 16 × 9/25 × 9 = 144/225 - Likewise, for the 2nd fraction, since 45 × 5 = 225,
21/45 = 21 × 5/45 × 5 = 105/225 - Add the two like fractions:
144/225 + 105/225 = 144 + 105/225 = 249/225 - 249/225 simplified gives 83/75
- So, 16/25 + 21/45 = 83/75
In mixed form: 18/75
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 32/25+21/45 16/25+42/45 16/50+21/45 16/25+21/90 48/25+21/45 16/25+63/45 16/75+21/45 80/25+21/45