Add 54/20 and 35/42
1st number: 2 14/20, 2nd number: 35/42
54/20 + 35/42 is 53/15.
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,
54/20 = 54 × 21/20 × 21 = 1134/420 - Likewise, for the 2nd fraction, since 42 × 10 = 420,
35/42 = 35 × 10/42 × 10 = 350/420 - Add the two like fractions:
1134/420 + 350/420 = 1134 + 350/420 = 1484/420 - 1484/420 simplified gives 53/15
- So, 54/20 + 35/42 = 53/15
In mixed form: 38/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/20+70/42 54/40+35/42 54/20+35/84 54/60+35/42