Add 54/16 and 81/20
1st number: 3 6/16, 2nd number: 4 1/20
54/16 + 81/20 is 297/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 20 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 16 × 5 = 80,
54/16 = 54 × 5/16 × 5 = 270/80 - Likewise, for the 2nd fraction, since 20 × 4 = 80,
81/20 = 81 × 4/20 × 4 = 324/80 - Add the two like fractions:
270/80 + 324/80 = 270 + 324/80 = 594/80 - 594/80 simplified gives 297/40
- So, 54/16 + 81/20 = 297/40
In mixed form: 717/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/32+81/20 54/16+81/40 54/48+81/20 54/16+81/60 54/80+81/20