Question

−(7,73−5 7/9)−(0,27−2 2/9).

Answer 1

Ответ:

(7,73-5 7/9)-(0,27-2 2/9)=

. +900

1. 7 73/100-5 7/9=(7-5)-(657-700)

______ =

900

1 857/900

2. 27/100-2 2/9= - 1 857/900

. +900

2 2/9-27/100=2-(200-243)

_______ =

900

1 857/900

3. 1 857/900-(-1 857/900)=

2 1714/900=3 814/900=3 407/450

Answer 2

To calculate the given expression step by step:

1. Convert the mixed numbers to improper fractions: $73 - 5 \frac{7}{9} = 73 - \frac{52}{9} = \frac{657}{9}$ $27 - 2 \frac{2}{9} = 27 - \frac{20}{9} = \frac{187}{9}$

2. Calculate the first subtraction inside the parentheses: $\frac{657}{9} - \frac{187}{9} = \frac{657 - 187}{9} = \frac{470}{9}$

3. Negate the result of the first subtraction: $-\frac{470}{9}$

4. Calculate the second subtraction: $0 - \frac{470}{9} = -\frac{470}{9}$

So, the final result of the given expression is $-\frac{470}{9}$.