Add 90/12 and 40/36
1st number: 7 6/12, 2nd number: 1 4/36
90/12 + 40/36 is 155/18.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 36 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 12 × 3 = 36,
90/12 = 90 × 3/12 × 3 = 270/36 - Likewise, for the 2nd fraction, since 36 × 1 = 36,
40/36 = 40 × 1/36 × 1 = 40/36 - Add the two like fractions:
270/36 + 40/36 = 270 + 40/36 = 310/36 - 310/36 simplified gives 155/18
- So, 90/12 + 40/36 = 155/18
In mixed form: 811/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/12+80/36 90/24+40/36 90/12+40/72 90/36+40/36 90/60+40/36 90/84+40/36