Question

3/5:4/5+1 2/10:5/4-1/7×7

Answer 1

Ответ равен: 71/100 = 0,71

Answer 2

To solve the expression you provided, let's break it down step by step:

1. $\frac{3}{5} + \frac{4}{5}$:

   Both fractions have the same denominator, so you can add the numerators:

   $\frac{3 + 4}{5} = \frac{7}{5}$

2. $\frac{1}{2} - \frac{5}{4} - \frac{1}{7} \times 7$:

   First, let's convert all fractions to have a common denominator:

   $\frac{1}{2} - \frac{5}{4} - \frac{1}{7} \times \frac{7}{1}$

   $\frac{2}{4} - \frac{5}{4} - \frac{1}{7} \times \frac{7}{1}$

   $\frac{-3}{4} - \frac{1}{7} \times 7$

   $\frac{-3}{4} - 1$

   $\frac{-3 - 4}{4}$

   $\frac{-7}{4}$

So, the final result is:

$\frac{7}{5} - \frac{7}{4}$