Add 72/18 and 4/16
1st number: 4 0/18, 2nd number: 4/16
72/18 + 4/16 is 17/4.
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,
4/16 = 4 × 9/16 × 9 = 36/144 - Add the two like fractions:
576/144 + 36/144 = 576 + 36/144 = 612/144 - 612/144 simplified gives 17/4
- So, 72/18 + 4/16 = 17/4
In mixed form: 41/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/18+8/16 72/36+4/16 72/18+4/32 72/18+12/16 72/54+4/16 72/18+4/48 72/18+20/16 72/90+4/16 72/18+4/80 72/18+28/16