Add 30/40 and 30/36
30/40 + 30/36 is 19/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 36 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 40 × 9 = 360,
30/40 = 30 × 9/40 × 9 = 270/360 - Likewise, for the 2nd fraction, since 36 × 10 = 360,
30/36 = 30 × 10/36 × 10 = 300/360 - Add the two like fractions:
270/360 + 300/360 = 270 + 300/360 = 570/360 - 570/360 simplified gives 19/12
- So, 30/40 + 30/36 = 19/12
In mixed form: 17/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/40+30/36 30/40+60/36 30/80+30/36 30/40+30/72 90/40+30/36 30/40+90/36