Add 16/72 and 18/20
16/72 + 18/20 is 101/90.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 20 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 72 × 5 = 360,
16/72 = 16 × 5/72 × 5 = 80/360 - Likewise, for the 2nd fraction, since 20 × 18 = 360,
18/20 = 18 × 18/20 × 18 = 324/360 - Add the two like fractions:
80/360 + 324/360 = 80 + 324/360 = 404/360 - 404/360 simplified gives 101/90
- So, 16/72 + 18/20 = 101/90
In mixed form: 111/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 32/72+18/20 16/72+36/20 16/72+18/40 48/72+18/20 16/72+54/20 16/72+18/60 80/72+18/20 16/72+90/20