Add 50/42 and 4/20
1st number: 1 8/42, 2nd number: 4/20
50/42 + 4/20 is 146/105.
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,
50/42 = 50 × 10/42 × 10 = 500/420 - Likewise, for the 2nd fraction, since 20 × 21 = 420,
4/20 = 4 × 21/20 × 21 = 84/420 - Add the two like fractions:
500/420 + 84/420 = 500 + 84/420 = 584/420 - 584/420 simplified gives 146/105
- So, 50/42 + 4/20 = 146/105
In mixed form: 141/105
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/42+8/20 50/84+4/20 50/42+4/40 50/42+12/20 50/42+4/60 50/42+28/20