Add 90/36 and 12/15
1st number: 2 18/36, 2nd number: 12/15
90/36 + 12/15 is 33/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 15 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 36 × 5 = 180,
90/36 = 90 × 5/36 × 5 = 450/180 - Likewise, for the 2nd fraction, since 15 × 12 = 180,
12/15 = 12 × 12/15 × 12 = 144/180 - Add the two like fractions:
450/180 + 144/180 = 450 + 144/180 = 594/180 - 594/180 simplified gives 33/10
- So, 90/36 + 12/15 = 33/10
In mixed form: 33/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/36+24/15 90/72+12/15 90/36+12/30 90/36+36/15 90/36+12/45 90/36+60/15 90/36+12/75 90/36+84/15