Add 12/25 and 9/42
12/25 + 9/42 is 243/350.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 42 is 1050
Next, find the equivalent fraction of both fractional numbers with denominator 1050 - For the 1st fraction, since 25 × 42 = 1050,
12/25 = 12 × 42/25 × 42 = 504/1050 - Likewise, for the 2nd fraction, since 42 × 25 = 1050,
9/42 = 9 × 25/42 × 25 = 225/1050 - Add the two like fractions:
504/1050 + 225/1050 = 504 + 225/1050 = 729/1050 - 729/1050 simplified gives 243/350
- So, 12/25 + 9/42 = 243/350
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/25+9/42 12/25+18/42 12/50+9/42 12/25+9/84 36/25+9/42 12/25+27/42 12/75+9/42 60/25+9/42 12/25+45/42 84/25+9/42 12/25+63/42