Add 20/75 and 9/28
20/75 + 9/28 is 247/420.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 28 is 2100
Next, find the equivalent fraction of both fractional numbers with denominator 2100 - For the 1st fraction, since 75 × 28 = 2100,
20/75 = 20 × 28/75 × 28 = 560/2100 - Likewise, for the 2nd fraction, since 28 × 75 = 2100,
9/28 = 9 × 75/28 × 75 = 675/2100 - Add the two like fractions:
560/2100 + 675/2100 = 560 + 675/2100 = 1235/2100 - 1235/2100 simplified gives 247/420
- So, 20/75 + 9/28 = 247/420
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/75+9/28 20/75+18/28 20/75+9/56 60/75+9/28 20/75+27/28 20/75+9/84 20/75+45/28 20/75+63/28