Add 36/40 and 15/90
36/40 + 15/90 is 16/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 90 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 40 × 9 = 360,
36/40 = 36 × 9/40 × 9 = 324/360 - Likewise, for the 2nd fraction, since 90 × 4 = 360,
15/90 = 15 × 4/90 × 4 = 60/360 - Add the two like fractions:
324/360 + 60/360 = 324 + 60/360 = 384/360 - 384/360 simplified gives 16/15
- So, 36/40 + 15/90 = 16/15
In mixed form: 11/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/40+15/90 36/40+30/90 36/80+15/90 36/40+45/90 36/40+75/90