Can I please have help with these problems?
2/5 divided by 5/6=
(+4)-(-5)=
(+18)divided by(-3)=
$\displaystyle \frac {2}{5}\div \frac {5}{6}$
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:
$\displaystyle 18\div (-3)=-6$