Question

Вычислить:1/20+2/15+3/20+1/15

Answer 1

$\frac{1}{20} + \frac{2}{15} + \frac{3}{20} + \frac{1}{15} = \frac{1+3}{20} + \frac{2+1}{15} = \frac{4}{20} + \frac{3}{15} = \frac{1}{5} + \frac{1}{5} = \frac{2}{5} = \frac{4}{10} =0.4$

Answer 2

To calculate the expression, you need to find a common denominator for all the fractions and then add them together. The common denominator for 20 and 15 is 60. Let's proceed with the calculation:

1/20 + 2/15 + 3/20 + 1/15

Step 1: Convert each fraction to have a common denominator of 60.

1/20 = 3/60 2/15 = 8/60 3/20 = 9/60 1/15 = 4/60

Step 2: Add the fractions together.

3/60 + 8/60 + 9/60 + 4/60 = 24/60

Step 3: Simplify the fraction (if possible).

24/60 can be simplified to 2/5.

So, the result of the expression is 2/5.