Đáp án:
Giải thích các bước giải:
`2/3 + 1/3 . ( 18,5 - 3 1/2 ) + 2/3 : 6`
= `2/3 + 1/3 . ( 37/2 - 7/2 ) + 2/3 . 1/6`
= `2/3 + 1/3 . 15 + 1/9`
= `2/3 + 5 + 1/9`
= `17/3 + 1/9`
= `52/9`
Đáp án+Giải thích các bước giải:
c,
$\dfrac{2}{3}+\dfrac{1}{3}×(18,5-3\dfrac{1}{3})+\dfrac{2}{3}:6$$=\dfrac{2}{3}+\dfrac{1}{3}×15+\dfrac{2}{3}:6$$=\dfrac{2}{3}+5+\dfrac{1}{9}$$=\dfrac{52}{9}$
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