Add 42/25 and 20/12
1st number: 1 17/25, 2nd number: 1 8/12
42/25 + 20/12 is 251/75.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 12 is 300
Next, find the equivalent fraction of both fractional numbers with denominator 300 - For the 1st fraction, since 25 × 12 = 300,
42/25 = 42 × 12/25 × 12 = 504/300 - Likewise, for the 2nd fraction, since 12 × 25 = 300,
20/12 = 20 × 25/12 × 25 = 500/300 - Add the two like fractions:
504/300 + 500/300 = 504 + 500/300 = 1004/300 - 1004/300 simplified gives 251/75
- So, 42/25 + 20/12 = 251/75
In mixed form: 326/75
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/25+20/12 42/25+40/12 42/50+20/12 42/25+20/24 42/25+60/12 42/75+20/12 42/25+20/36 42/25+20/60 42/25+20/84