Add 40/2 and 20/72
1st number: 20 0/2, 2nd number: 20/72
40/2 + 20/72 is 365/18.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 72 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 2 × 36 = 72,
40/2 = 40 × 36/2 × 36 = 1440/72 - Likewise, for the 2nd fraction, since 72 × 1 = 72,
20/72 = 20 × 1/72 × 1 = 20/72 - Add the two like fractions:
1440/72 + 20/72 = 1440 + 20/72 = 1460/72 - 1460/72 simplified gives 365/18
- So, 40/2 + 20/72 = 365/18
In mixed form: 205/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/2+20/72 40/2+40/72 40/4+20/72 40/2+60/72 40/6+20/72 40/10+20/72 40/14+20/72