Add 54/20 and 42/16
1st number: 2 14/20, 2nd number: 2 10/16
54/20 + 42/16 is 213/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 16 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 20 × 4 = 80,
54/20 = 54 × 4/20 × 4 = 216/80 - Likewise, for the 2nd fraction, since 16 × 5 = 80,
42/16 = 42 × 5/16 × 5 = 210/80 - Add the two like fractions:
216/80 + 210/80 = 216 + 210/80 = 426/80 - 426/80 simplified gives 213/40
- So, 54/20 + 42/16 = 213/40
In mixed form: 513/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/20+84/16 54/40+42/16 54/20+42/32 54/60+42/16 54/20+42/48 54/20+42/80