Add 21/75 and 25/18
1st number: 21/75, 2nd number: 1 7/18
21/75 + 25/18 is 751/450.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 18 is 450
Next, find the equivalent fraction of both fractional numbers with denominator 450 - For the 1st fraction, since 75 × 6 = 450,
21/75 = 21 × 6/75 × 6 = 126/450 - Likewise, for the 2nd fraction, since 18 × 25 = 450,
25/18 = 25 × 25/18 × 25 = 625/450 - Add the two like fractions:
126/450 + 625/450 = 126 + 625/450 = 751/450 - So, 21/75 + 25/18 = 751/450
In mixed form: 1301/450
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/75+25/18 21/75+50/18 21/75+25/36 63/75+25/18 21/75+75/18 21/75+25/54 21/75+25/90