Add 15/28 and 30/75
15/28 + 30/75 is 131/140.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 75 is 2100
Next, find the equivalent fraction of both fractional numbers with denominator 2100 - For the 1st fraction, since 28 × 75 = 2100,
15/28 = 15 × 75/28 × 75 = 1125/2100 - Likewise, for the 2nd fraction, since 75 × 28 = 2100,
30/75 = 30 × 28/75 × 28 = 840/2100 - Add the two like fractions:
1125/2100 + 840/2100 = 1125 + 840/2100 = 1965/2100 - 1965/2100 simplified gives 131/140
- So, 15/28 + 30/75 = 131/140
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/28+30/75 15/28+60/75 15/56+30/75 45/28+30/75 15/28+90/75 15/84+30/75 75/28+30/75