Add 20/84 and 28/75
20/84 + 28/75 is 107/175.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 75 is 2100
Next, find the equivalent fraction of both fractional numbers with denominator 2100 - For the 1st fraction, since 84 × 25 = 2100,
20/84 = 20 × 25/84 × 25 = 500/2100 - Likewise, for the 2nd fraction, since 75 × 28 = 2100,
28/75 = 28 × 28/75 × 28 = 784/2100 - Add the two like fractions:
500/2100 + 784/2100 = 500 + 784/2100 = 1284/2100 - 1284/2100 simplified gives 107/175
- So, 20/84 + 28/75 = 107/175
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/84+28/75 20/84+56/75 60/84+28/75 20/84+84/75