Add 10/42 and 24/20
1st number: 10/42, 2nd number: 1 4/20
10/42 + 24/20 is 151/105.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 20 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 42 × 10 = 420,
10/42 = 10 × 10/42 × 10 = 100/420 - Likewise, for the 2nd fraction, since 20 × 21 = 420,
24/20 = 24 × 21/20 × 21 = 504/420 - Add the two like fractions:
100/420 + 504/420 = 100 + 504/420 = 604/420 - 604/420 simplified gives 151/105
- So, 10/42 + 24/20 = 151/105
In mixed form: 146/105
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/42+24/20 10/42+48/20 10/84+24/20 10/42+24/40 30/42+24/20 10/42+72/20 10/42+24/60 50/42+24/20 70/42+24/20