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Simple calculation of 2 7+5 7 1 5-1 14.
It is simple to calculate the multiplication first, and then extract the common factor 1 14. 2/7+5/7ⅹ1/5-1/14=2/7+1/7-1/14=1/14x(4+2-1)=5/14。
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This is a four-rule operation problem of fractions, first calculate the division and then calculate the addition and subtraction (the law of multiplication of fractions: the numerator is multiplied by the numerator to make the numerator, and the denominator is multiplied by the denominator to make the denominator), and the addition and subtraction are passed first by the fraction when calculating addition and subtraction.
Original 2 7+5 35-1 14
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The multiplication is calculated first, and then the calculation is carried out through the points.
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This question is a fraction operation problem.
The main thing is to divide and pass through.
The specific calculation solution is as follows.
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Solution: Original = 2 7 a 1 14 ten 1 7
2 7 1 7 1 14
3 7 a 1 14
6 14 a 1 14
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Calculate in order, as follows.
Hope, thank you!
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2 7 5 7 1 5 1 14 How do you calculate it with simple calculations?
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This question can be done according to the algorithm method.
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(47+704 16) 18 first calculate the addition of the brackets, and then calculate the multiplication of the brackets.
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Hello! Schoolmate.
The simple algorithm process is as follows.
47 (100-1) Modular Suspect Chain.
Have you learned it? Schoolmate. I hope I can help you!
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47+5 47-4 47 How to calculate the simple method? Hello, if you look closely at this equation, you will find that the number 47 appears three times, so you can start from this number and change this equation variant to 47 (1+5-4)=94.
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This degree is very simple, there is the number 47 before and after, then it becomes 47 times the parentheses 1+5-4, so 2 47 = 94
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Normal calculations are simple. Count the inside of the brackets first, and then count the middle brackets, and you can calculate what easier calculations are needed.
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Off-line calculations (
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