Add 21/75 and 9/4
1st number: 21/75, 2nd number: 2 1/4
21/75 + 9/4 is 253/100.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 4 is 300
Next, find the equivalent fraction of both fractional numbers with denominator 300 - For the 1st fraction, since 75 × 4 = 300,
21/75 = 21 × 4/75 × 4 = 84/300 - Likewise, for the 2nd fraction, since 4 × 75 = 300,
9/4 = 9 × 75/4 × 75 = 675/300 - Add the two like fractions:
84/300 + 675/300 = 84 + 675/300 = 759/300 - 759/300 simplified gives 253/100
- So, 21/75 + 9/4 = 253/100
In mixed form: 253/100
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/75+9/4 21/75+18/4 21/75+9/8 63/75+9/4 21/75+27/4 21/75+9/12 21/75+45/4 21/75+9/20 21/75+63/4 21/75+9/28