Add 84/75 and 45/12
1st number: 1 9/75, 2nd number: 3 9/12
84/75 + 45/12 is 487/100.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 12 is 300
Next, find the equivalent fraction of both fractional numbers with denominator 300 - For the 1st fraction, since 75 × 4 = 300,
84/75 = 84 × 4/75 × 4 = 336/300 - Likewise, for the 2nd fraction, since 12 × 25 = 300,
45/12 = 45 × 25/12 × 25 = 1125/300 - Add the two like fractions:
336/300 + 1125/300 = 336 + 1125/300 = 1461/300 - 1461/300 simplified gives 487/100
- So, 84/75 + 45/12 = 487/100
In mixed form: 487/100
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/75+90/12 84/75+45/24 84/75+45/36 84/75+45/60 84/75+45/84