=9/ 10÷(24/5-4/5)
=9/ 10÷4
=9/40
1
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How to write the calculation of 65438+9/00 (18× 65438+4/5)?
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How to write the calculation of 65438+9/00 (18× 65438+4/5)?
65438+9/00( 18×65438+4/5)65438+9/00( 18×65438+4/5)= 9/？
2 like 66 browsing 20 16-05-05
5/9 times 3/4 plus 5/9 times 1
5/9 times 3/4 plus 5/9 times 41= 5/9× (3/4+1/4) = 5/9×1= 5/9 Analysis: After observation, this problem can be calculated by a simple method. Put forward 5/9 first, and then multiply the number obtained by adding 3/4 and 1/4 by 5/9 to get the final result. This problem mainly uses the inverse operation of multiplication distribution rate. Extended data:
Multiplication and Distribution Law When the sum of two numbers is multiplied by a number, it can be multiplied by this number and then added. This is the so-called multiplication and distribution law. Multiplying the sum of two numbers by a number is equivalent to multiplying two addends by this number respectively, and then adding the two products, which makes the calculation easier and the result unchanged. The letter of multiplication and division means: (a+b)c=ac+bc (more common). There is another expression: a(b+c)=ab+ac.
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How to calculate 14545÷ 15×23 for off type calculation?
65438+9/00( 18×65438+4/5)65438+9/00( 18×65438+4/5)= 9/？
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Off-model calculation, (simplify if you can). 1 9× 13 4× 18 13 4 3× 5+4 3× 2+4 3×3.
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Out-of-step calculation: one-ninth divided by (five-sixths times four-fifths)?
Out-of-step calculation: one-ninth divided by (five-sixths times four-fifths)? 1/9÷(5/6×4/ 15) = 1/9÷2/9 =2
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