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请问数学: (1/40-1/45)÷(1/45)=( ) 这题目正确写法应当怎
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淡定等水池
淡定等水池
样?
To solve this problem, you can start by simplifying the expressions on the left side of the equation. First, you can simplify the expression 1/40 - 1/45 by using the fact that the difference between two fractions is equal to the fraction obtained by subtracting the numerators and keeping the denominator the same.Using this fact, we can rewrite the expression as follows:(1/40 - 1/45) ÷ (1/45) = (40/40 - 45/45) ÷ (1/45)
Next, you can simplify the expression (40/40 - 45/45) by noticing that 40/40 is equal to 1 and 45/45 is also equal to 1. Therefore, the expression simplifies to:(1 - 1) ÷ (1/45) = 0 ÷ (1/45)
Finally, you can simplify the expression 0 ÷ (1/45) by dividing 0 by 1 and then multiplying the result by the reciprocal of 1/45, which is 45/1. This gives us:0 ÷ (1/45) = (0 ÷ 1) * (45/1) = 0 * 45 = 0
Therefore, the correct answer to the problem is 0.
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