Add 4/75 and 28/21
1st number: 4/75, 2nd number: 1 7/21
4/75 + 28/21 is 104/75.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 21 is 525
Next, find the equivalent fraction of both fractional numbers with denominator 525 - For the 1st fraction, since 75 × 7 = 525,
4/75 = 4 × 7/75 × 7 = 28/525 - Likewise, for the 2nd fraction, since 21 × 25 = 525,
28/21 = 28 × 25/21 × 25 = 700/525 - Add the two like fractions:
28/525 + 700/525 = 28 + 700/525 = 728/525 - 728/525 simplified gives 104/75
- So, 4/75 + 28/21 = 104/75
In mixed form: 129/75
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/75+28/21 4/75+56/21 4/75+28/42 12/75+28/21 4/75+84/21 4/75+28/63 20/75+28/21 28/75+28/21