Question

1) - 2 1/5 + 7 19/25 + (-3 3/10) 2) - 3 2/5 +7 22/25 + (-2 3/10)=

Answer 1

Ответ:

- 2 1/5 + 7 19/25 + (-3 3/10) = 2.26

- 3 2/5 +7 22/25 + (-2 3/10) = 2.18

Answer 2

To solve the given equation:

1) Start by simplifying each term separately: - 2 + 1/5 = -9/5 - 7 + 19/25 = -156/25 - (-3 + 3/10) = 33/10 - 2 = -2 - 3 + 2/5 = -13/5 - 7 + 22/25 = -153/25 - (-2 + 3/10) = 23/10

2) Substitute the simplified values back into the equation: - (-9/5) + (-156/25) + (33/10) - 2 + (-13/5) + (-153/25) + (23/10)

3) Find a common denominator for all the fractions, which is 50 in this case.

- (-9/5) + (-156/25) + (33/10) - 2 + (-13/5) + (-153/25) + (23/10) = (-90/50) + (-312/50) + (165/50) - (100/50) + (-130/50) + (-306/50) + (115/50)

4) Combine the numerators: = (-90 - 312 + 165 - 100 - 130 - 306 + 115)/50 = (-958)/50 = -1916/100 = -19.16

Therefore, the solution to the equation -2 + 1/5 + 7 + 19/25 + (-3 + 3/10) + 2 + (-3 + 2/5) + 7 + 22/25 + (-2 + 3/10) is -19.16.