Add 90/15 and 40/36
1st number: 6 0/15, 2nd number: 1 4/36
90/15 + 40/36 is 64/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 36 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 15 × 12 = 180,
90/15 = 90 × 12/15 × 12 = 1080/180 - Likewise, for the 2nd fraction, since 36 × 5 = 180,
40/36 = 40 × 5/36 × 5 = 200/180 - Add the two like fractions:
1080/180 + 200/180 = 1080 + 200/180 = 1280/180 - 1280/180 simplified gives 64/9
- So, 90/15 + 40/36 = 64/9
In mixed form: 71/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/15+80/36 90/30+40/36 90/15+40/72 90/45+40/36 90/75+40/36