Question

3. 8 2/5 x 5 1/2
4. 8x + 8
6. 6 divided by 1/5
7. 3/8 divided by 2/7
8. 8 2/5 divided by 2 5/8
10. 6/5 divided by ___ = 6
12. c/3 = 4
13. 2 1/3x = 7 7/8


I NEED HELP ON THESE

Answer 1

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Answer 2

( 8 + 2 / 5 ) * ( 5 + 1 / 2 ) = ( 40 / 5 + 2 / 5 ) * ( 10 / 2 + 1 / 2 ) = 42 / 5 * 11 / 2 =

42 / 5 * 11 / 2 = 42 * 11 / 5 * 2 = 462 / 10 = 2 * 231 / 2 * 5 = 231 / 5


8 x + 8 = 8 ( x + 1 )


6 / ( 1 / 5 ) = 6 * 5 = 30


( 3 / 8 ) / ( 2 / 7 ) = 3 * 7 / 8 * 2 = 21 / 16


( 8 + 2 / 5 ) / ( 2 + 5 / 8 ) = ( 40 / 5 + 2 / 5 ) / ( 16 / 8 + 5 / 8 ) = ( 42 / 5 ) / ( 21 / 8 ) =

42 * 8 / 5 * 21 = 21 * 2 * 8 / 21 * 5 = 2 * 8 / 5 = 16 / 5


( 6 / 5 ) / x = 6

6 / 5 x = 6


Multiply both sides by 5 x

6 = 30 x

Divide both sides by 30

6 / 30 = x

6 / 6 * 5 = x

1 / 5 = x

x = 1 / 5


c / 3 = 4

Multiply both sides by 3

c = 12


( 2 + 1 / 3 ) x = 7 + 7 / 8

( 6 / 3 + 1 / 3 ) x = 56 / 8 + 7 / 8

( 7 / 3 ) x = 63 / 8

7 x / 3 = 63 / 8

Cross multiply

7 x * 8 = 3 * 63

56 x = 189

x = 189 / 56 = ( 168 + 21 ) / 56 =

168 / 56 + 21 / 56 = 3 + 21 / 56 = 3 21/56