Add 90/18 and 3/72
1st number: 5 0/18, 2nd number: 3/72
90/18 + 3/72 is 121/24.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 72 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 18 × 4 = 72,
90/18 = 90 × 4/18 × 4 = 360/72 - Likewise, for the 2nd fraction, since 72 × 1 = 72,
3/72 = 3 × 1/72 × 1 = 3/72 - Add the two like fractions:
360/72 + 3/72 = 360 + 3/72 = 363/72 - 363/72 simplified gives 121/24
- So, 90/18 + 3/72 = 121/24
In mixed form: 51/24
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/18+6/72 90/36+3/72 90/18+9/72 90/54+3/72 90/18+15/72 90/18+21/72