求數學方程式答案(只需列式)

1)Subtract two-thirds from a number and multiply the difference by four.
Ans. : Let the number be X,
X(1- 2/3)*4
2)Divide a number by two and add one-twelfth(of the result) to the quotient.
Ans. : X/2(1+ 1/12)

3)Add three quarters of a number and multiple the sum by two-thirds.
Ans. : [X(1 + 3/4)] 2/3

4)Multiply a number by a quarter and divide the product by two-thirds.
Ans. : X( 1/4 ) / 2/3

5)Divide a number by three quarters and divide the product by two-third of a number.
Ans. : (X / 3/4) / (2/3)

6)Subtract two-thirds of a number from six and divide the quotient by three-fifths of a number.
Ans. : [6 - X ( 2/3 ) ] / ( 3/5 )

7)Add a quarter to a number and divide the sum by four-fifths of a number.
Ans. : ( X + 1/4 ) / (4/5) X

8)Multiply a number by three quarters and divide the product by two-thirds of a number.
Ans. : X ( 3/4 ) / (2/3) X

9)Multiply five-sixths of a number by a quarter and divide the product by four-fifths of a number.
Ans. : [ ( 5/6 ) X ]( 1/4 ) / ( 4/5 ) X

let x be the number.
1)4 (x - 2/3)
2) x/2 + 1/12
3)2/3 (3/4 + x)
4) x (1/4) ÷ 2/3
5)(x ÷ 3/4) ÷ 2x/3
6) (6 - 2x/3 )÷ 3x/5
7) (1/4 + x) ÷ 4x/5
8) (3x/4) ÷ 2x/3
9) (5x/6 × 1/4) ÷ 4x/5
hope you will understand what i am typing....

1)Subtract two-thirds from a number and multiply the difference by four.
4(x - 2/3)

2)Divide a number by two and add one-twelfth to the quotient.
x/2 + 1/12


3)Add three quarters of a number and multiple the sum by two-thirds.
(x + 3x/4)(2/3)

4)Multiply a number by a quarter and divide the product by two-thirds.
(x/4)/(2/3)

5)Divide a number by three quarters and divide the product by two-third of a number.
[x/(3/4)]/(2x/3)

6)Subtract two-thirds of a number from six and divide the quotient by three-fifths of a number.
(6-2x/3)/(3x/5)

7)Add a quarter to a number and divide the sum by four-fifths of a number.
(x+ 1/4)/(4x/5)

8)Multiply a number by three quarters and divide the product by two-thirds of a number.
(3x/4)/(2x/3)

9)Multiply five-sixths of a number by a quarter and divide the product by four-fifths of a number.
(5x/6)(1/4)/(4x/5)