Add 16/45 and 72/90
16/45 + 72/90 is 52/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 90 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 45 × 2 = 90,
16/45 = 16 × 2/45 × 2 = 32/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
72/90 = 72 × 1/90 × 1 = 72/90 - Add the two like fractions:
32/90 + 72/90 = 32 + 72/90 = 104/90 - 104/90 simplified gives 52/45
- So, 16/45 + 72/90 = 52/45
In mixed form: 17/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 32/45+72/90 16/90+72/90 48/45+72/90 80/45+72/90