Add 54/42 and 96/20
1st number: 1 12/42, 2nd number: 4 16/20
54/42 + 96/20 is 213/35.
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,
54/42 = 54 × 10/42 × 10 = 540/420 - Likewise, for the 2nd fraction, since 20 × 21 = 420,
96/20 = 96 × 21/20 × 21 = 2016/420 - Add the two like fractions:
540/420 + 2016/420 = 540 + 2016/420 = 2556/420 - 2556/420 simplified gives 213/35
- So, 54/42 + 96/20 = 213/35
In mixed form: 63/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/84+96/20 54/42+96/40 54/42+96/60