Add 72/75 and 4/84
72/75 + 4/84 is 529/525.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 84 is 2100
Next, find the equivalent fraction of both fractional numbers with denominator 2100 - For the 1st fraction, since 75 × 28 = 2100,
72/75 = 72 × 28/75 × 28 = 2016/2100 - Likewise, for the 2nd fraction, since 84 × 25 = 2100,
4/84 = 4 × 25/84 × 25 = 100/2100 - Add the two like fractions:
2016/2100 + 100/2100 = 2016 + 100/2100 = 2116/2100 - 2116/2100 simplified gives 529/525
- So, 72/75 + 4/84 = 529/525
In mixed form: 14/525
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/75+8/84 72/75+12/84 72/75+20/84 72/75+28/84