Add 12/75 and 18/42
12/75 + 18/42 is 103/175.
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,
12/75 = 12 × 14/75 × 14 = 168/1050 - Likewise, for the 2nd fraction, since 42 × 25 = 1050,
18/42 = 18 × 25/42 × 25 = 450/1050 - Add the two like fractions:
168/1050 + 450/1050 = 168 + 450/1050 = 618/1050 - 618/1050 simplified gives 103/175
- So, 12/75 + 18/42 = 103/175
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/75+18/42 12/75+36/42 12/75+18/84 36/75+18/42 12/75+54/42 60/75+18/42 12/75+90/42 84/75+18/42