Can I please have help with these problems?

2/5 divided by 5/6=

(+4)-(-5)=

(+18)divided by(-3)=

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- Apr 12th 2008, 07:06 PMnot happy janintegers and fractions
Can I please have help with these problems?

2/5 divided by 5/6=

(+4)-(-5)=

(+18)divided by(-3)= - Apr 12th 2008, 07:18 PMtopher0805
$\displaystyle \frac {2}{5}\div \frac {5}{6}$

Remember when dividing fraction just flip and multiply:

$\displaystyle \frac {2}{5}\div \frac {5}{6}=\frac {2}{5}\cdot \frac {6}{5}$

Then just multiply the numerator by the numerator and the denominator by the denominator.

$\displaystyle (4)-(-5)$

Remember that subtracting a negative number is the same as adding that number:

$\displaystyle (4)-(-5)=4+5$

Then just add.

$\displaystyle 18\div (-3)$

This is just the same as normal division, except you have to remember to keep the minus sign:

$\displaystyle 18\div (-3)=-6$