Add 4/72 and 45/9
1st number: 4/72, 2nd number: 5 0/9
4/72 + 45/9 is 91/18.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 9 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 72 × 1 = 72,
4/72 = 4 × 1/72 × 1 = 4/72 - Likewise, for the 2nd fraction, since 9 × 8 = 72,
45/9 = 45 × 8/9 × 8 = 360/72 - Add the two like fractions:
4/72 + 360/72 = 4 + 360/72 = 364/72 - 364/72 simplified gives 91/18
- So, 4/72 + 45/9 = 91/18
In mixed form: 51/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/72+45/9 4/72+90/9 4/72+45/18 12/72+45/9 4/72+45/27 20/72+45/9 28/72+45/9 4/72+45/63