Add 12/72 and 90/54
1st number: 12/72, 2nd number: 1 36/54
12/72 + 90/54 is 11/6.
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,
12/72 = 12 × 3/72 × 3 = 36/216 - Likewise, for the 2nd fraction, since 54 × 4 = 216,
90/54 = 90 × 4/54 × 4 = 360/216 - Add the two like fractions:
36/216 + 360/216 = 36 + 360/216 = 396/216 - 396/216 simplified gives 11/6
- So, 12/72 + 90/54 = 11/6
In mixed form: 15/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/72+90/54 36/72+90/54 60/72+90/54 84/72+90/54