Add 15/75 and 30/42
15/75 + 30/42 is 32/35.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 42 is 1050
Next, find the equivalent fraction of both fractional numbers with denominator 1050 - For the 1st fraction, since 75 × 14 = 1050,
15/75 = 15 × 14/75 × 14 = 210/1050 - Likewise, for the 2nd fraction, since 42 × 25 = 1050,
30/42 = 30 × 25/42 × 25 = 750/1050 - Add the two like fractions:
210/1050 + 750/1050 = 210 + 750/1050 = 960/1050 - 960/1050 simplified gives 32/35
- So, 15/75 + 30/42 = 32/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/75+30/42 15/75+60/42 15/75+30/84 45/75+30/42 15/75+90/42