Question

-2,8+(-1,65+(-3.4) -8+4 3/7+2 11/21 2,2+(-4 1/3)+(-1 13/15)

Answer 1

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Answer 2

Let's break down this expression into smaller parts and simplify them step by step:

-2,8 + (-1,65 + (-3.4)) - 8 + 4 3/7 + 2 11/21 + 2,2 + (-4 1/3) + (-1 13/15)

= -2.8 + (-5.05) - 8 + 4.42857 + 2.52381 + 2.2 - 4.33333 - 1.86667 (Convert mixed numbers to improper fractions)

= -2.8 - 5.05 - 8 + 4.42857 + 2.52381 + 2.2 - 4.33333 - 1.86667 (Add and subtract from left to right)

= -13.8954

Therefore, the final result of this expression is -13.8954.