Add 12/75 and 3/21
12/75 + 3/21 is 53/175.
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,
12/75 = 12 × 7/75 × 7 = 84/525 - Likewise, for the 2nd fraction, since 21 × 25 = 525,
3/21 = 3 × 25/21 × 25 = 75/525 - Add the two like fractions:
84/525 + 75/525 = 84 + 75/525 = 159/525 - 159/525 simplified gives 53/175
- So, 12/75 + 3/21 = 53/175
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/75+3/21 12/75+6/21 12/75+3/42 36/75+3/21 12/75+9/21 12/75+3/63 60/75+3/21 12/75+15/21 84/75+3/21