dividing a fraction by another fraction is to multiply the first fraction by the reciprocal of the second fraction.
2/5÷5/6= 2/5 x 6/5 2 x 6=12 and 5 x 5=25
=12/25
and 12/25 is the simplest form because you can't divide 12 and 25 by the same number. 12 is an even number and 25 is an odd number.