Add 21/60 and 9/25
21/60 + 9/25 is 71/100.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 25 is 300
Next, find the equivalent fraction of both fractional numbers with denominator 300 - For the 1st fraction, since 60 × 5 = 300,
21/60 = 21 × 5/60 × 5 = 105/300 - Likewise, for the 2nd fraction, since 25 × 12 = 300,
9/25 = 9 × 12/25 × 12 = 108/300 - Add the two like fractions:
105/300 + 108/300 = 105 + 108/300 = 213/300 - 213/300 simplified gives 71/100
- So, 21/60 + 9/25 = 71/100
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/60+9/25 21/60+18/25 21/60+9/50 63/60+9/25 21/60+27/25 21/60+9/75 21/60+45/25 21/60+63/25