Add 45/18 and 54/16
1st number: 2 9/18, 2nd number: 3 6/16
45/18 + 54/16 is 47/8.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 16 is 144
Next, find the equivalent fraction of both fractional numbers with denominator 144 - For the 1st fraction, since 18 × 8 = 144,
45/18 = 45 × 8/18 × 8 = 360/144 - Likewise, for the 2nd fraction, since 16 × 9 = 144,
54/16 = 54 × 9/16 × 9 = 486/144 - Add the two like fractions:
360/144 + 486/144 = 360 + 486/144 = 846/144 - 846/144 simplified gives 47/8
- So, 45/18 + 54/16 = 47/8
In mixed form: 57/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/18+54/16 45/36+54/16 45/18+54/32 45/54+54/16 45/18+54/48 45/90+54/16 45/18+54/80