3

2/3x = 10;

x = 10 ÷ 2/3;

x = (10*3) ÷ 2;

x = 30 ÷ 2;

x = 15

Added 7/24/2014 5:54:11 AM

This answer has been confirmed as correct and helpful.

0

the solution to the equation 2/3x=10 is x=1/15.

2/3x=10

2/10=3x

1/5=3x,

1/5 /3=x

1/5*1/3=x

1/15=x,

x=1/15.

Added 7/24/2014 5:45:01 AM

This answer has been flagged as incorrect.

0

21/45, 28/60, 35/75 are also equivilent to 7/15.

Molecular and denominator multiplied by the same ratio at the same time ,The fraction we get are equivilent to 7/15.

Added 7/24/2014 5:48:37 AM

0

For the 3th quesiton.

5/18 +(-1/6)

=5/18-1/6

=5/18-3/18

=(5-3)/18

=2/18

=1/9

Added 7/24/2014 5:51:07 AM