Add 50/20 and 54/42
1st number: 2 10/20, 2nd number: 1 12/42
50/20 + 54/42 is 53/14.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 42 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 20 × 21 = 420,
50/20 = 50 × 21/20 × 21 = 1050/420 - Likewise, for the 2nd fraction, since 42 × 10 = 420,
54/42 = 54 × 10/42 × 10 = 540/420 - Add the two like fractions:
1050/420 + 540/420 = 1050 + 540/420 = 1590/420 - 1590/420 simplified gives 53/14
- So, 50/20 + 54/42 = 53/14
In mixed form: 311/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/40+54/42 50/20+54/84 50/60+54/42