Add 10/42 and 20/25
10/42 + 20/25 is 109/105.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 25 is 1050
Next, find the equivalent fraction of both fractional numbers with denominator 1050 - For the 1st fraction, since 42 × 25 = 1050,
10/42 = 10 × 25/42 × 25 = 250/1050 - Likewise, for the 2nd fraction, since 25 × 42 = 1050,
20/25 = 20 × 42/25 × 42 = 840/1050 - Add the two like fractions:
250/1050 + 840/1050 = 250 + 840/1050 = 1090/1050 - 1090/1050 simplified gives 109/105
- So, 10/42 + 20/25 = 109/105
In mixed form: 14/105
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/42+20/25 10/42+40/25 10/84+20/25 10/42+20/50 30/42+20/25 10/42+60/25 10/42+20/75 50/42+20/25 70/42+20/25