Add 16/45 and 80/72
1st number: 16/45, 2nd number: 1 8/72
16/45 + 80/72 is 22/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 72 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 45 × 8 = 360,
16/45 = 16 × 8/45 × 8 = 128/360 - Likewise, for the 2nd fraction, since 72 × 5 = 360,
80/72 = 80 × 5/72 × 5 = 400/360 - Add the two like fractions:
128/360 + 400/360 = 128 + 400/360 = 528/360 - 528/360 simplified gives 22/15
- So, 16/45 + 80/72 = 22/15
In mixed form: 17/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 32/45+80/72 16/90+80/72 48/45+80/72 80/45+80/72