Add 90/54 and 45/72
1st number: 1 36/54, 2nd number: 45/72
90/54 + 45/72 is 55/24.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 72 is 216
Next, find the equivalent fraction of both fractional numbers with denominator 216 - For the 1st fraction, since 54 × 4 = 216,
90/54 = 90 × 4/54 × 4 = 360/216 - Likewise, for the 2nd fraction, since 72 × 3 = 216,
45/72 = 45 × 3/72 × 3 = 135/216 - Add the two like fractions:
360/216 + 135/216 = 360 + 135/216 = 495/216 - 495/216 simplified gives 55/24
- So, 90/54 + 45/72 = 55/24
In mixed form: 27/24
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/54+90/72