Add 36/40 and 84/20
1st number: 36/40, 2nd number: 4 4/20
36/40 + 84/20 is 51/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 20 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 40 × 1 = 40,
36/40 = 36 × 1/40 × 1 = 36/40 - Likewise, for the 2nd fraction, since 20 × 2 = 40,
84/20 = 84 × 2/20 × 2 = 168/40 - Add the two like fractions:
36/40 + 168/40 = 36 + 168/40 = 204/40 - 204/40 simplified gives 51/10
- So, 36/40 + 84/20 = 51/10
In mixed form: 51/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/40+84/20 36/80+84/20 36/40+84/40 36/40+84/60