Add 72/18 and 5/16
1st number: 4 0/18, 2nd number: 5/16
72/18 + 5/16 is 69/16.
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,
72/18 = 72 × 8/18 × 8 = 576/144 - Likewise, for the 2nd fraction, since 16 × 9 = 144,
5/16 = 5 × 9/16 × 9 = 45/144 - Add the two like fractions:
576/144 + 45/144 = 576 + 45/144 = 621/144 - 621/144 simplified gives 69/16
- So, 72/18 + 5/16 = 69/16
In mixed form: 45/16
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/18+10/16 72/36+5/16 72/18+5/32 72/18+15/16 72/54+5/16 72/18+5/48 72/18+25/16 72/90+5/16 72/18+5/80 72/18+35/16