Add 90/72 and 10/54
1st number: 1 18/72, 2nd number: 10/54
90/72 + 10/54 is 155/108.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 54 is 216
Next, find the equivalent fraction of both fractional numbers with denominator 216 - For the 1st fraction, since 72 × 3 = 216,
90/72 = 90 × 3/72 × 3 = 270/216 - Likewise, for the 2nd fraction, since 54 × 4 = 216,
10/54 = 10 × 4/54 × 4 = 40/216 - Add the two like fractions:
270/216 + 40/216 = 270 + 40/216 = 310/216 - 310/216 simplified gives 155/108
- So, 90/72 + 10/54 = 155/108
In mixed form: 147/108
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/72+20/54 90/72+30/54 90/72+50/54 90/72+70/54