4 4/7-0,38-2 2/3-1,62+1 3/7-1 1/3=помогите

Question

4 4/7-0,38-2 2/3-1,62+1 3/7-1 1/3=
помогите

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Answer 1

1) 4 ( 4/7 ) - 2 ( 2/3 ) + 1 ( 3/7 ) - 1 ( 1/3 ) = 5 ( 7/7 ) - 3 ( 3/3 ) = 6 - 4 = 2
2) - 0,38 - 1,62 = - 2
3) 2 - 2 = 0
Ответ 0

Answer 2

4⁴/₇ - 0,38 - 2²/₃ - 1,62 + 1³/₇ - 1¹/₃ =
(4⁴/₇ + 1³/₇)  - (0,38 + 1,62)  - (2²/₃ + 1¹/₃) =
(5 + ⁴/₇ + ³/₇) - 2 - (3 + ²/₃ + ¹/₃) =
(5 + ⁷/₇) - 2 - (3 + ³/₃) = (5 + 1) -2 - (3 + 1) = 6 -2 - 4 = 0