2 câu trả lời
2/3 . 66/100 + 2/3 . 35/100 -2/3
= 2/3 . 66/100 + 2/3 . 35/100 - 2/3 . 1
= 2/3 . (66/100 + 35/100 - 1)
= 2/3 . 1 = 2/3
2/3 × 66/100 + 2/3 × 35/100 -2/3
= 2/3 × ( 66/100 + 35/100 - 1 )
= 2/3 × 1/100
= 2/300
= 1/150.
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