Question

40 choose the sum that is less than 4. $3\frac{1}{5}+\frac{4}{5}$ $3\frac{2}{5}+\frac{1}{5}$ $3\frac{3}{5}+\frac{3}{5}$ $3\frac{4}{5}+\frac{1}{5}$

Explanation:

Step1: Calculate first sum

Convert mixed number, add:
$3\frac{1}{5} + \frac{4}{5} = \frac{16}{5} + \frac{4}{5} = \frac{20}{5} = 4$

Step2: Calculate second sum

Convert mixed number, add:
$3\frac{2}{5} + \frac{1}{5} = \frac{17}{5} + \frac{1}{5} = \frac{18}{5} = 3.6$

Step3: Calculate third sum

Convert mixed number, add:
$3\frac{3}{5} + \frac{3}{5} = \frac{18}{5} + \frac{3}{5} = \frac{21}{5} = 4.2$

Step4: Calculate fourth sum

Convert mixed number, add:
$3\frac{4}{5} + \frac{1}{5} = \frac{19}{5} + \frac{1}{5} = \frac{20}{5} = 4$

Step5: Compare sums to 4

Identify sum < 4: $3.6 < 4$

Answer:

$3\frac{2}{5} + \frac{1}{5}$