It is called "taking the reciprocal".
To find the reciprocal of a fraction, simply flip it over. For example, if you have the fraction 3/4, its reciprocal would be 4/3. Essentially, you swap the numerator and denominator.
-19/9. When you have a fraction divided by a fraction, you multiply the first fraction by the second fraction flipped over (switch the numerator and denominator). The sevens cancel out, and you are left with -19/9.
This is because dividing by a number is the same as multiplying by its reciprocal.
Unless the first number is zero, then this must ALWAYS be the case.
To divide a whole number by a mixed number, you must first make the mixed number an improper fraction. You can do this by multiplying the denominator (the bottom number) by the whole number and adding the numerator (the top number) to the product. Once you have done this, take the reciprocal of the improper fraction (simply switch the two numbers around) and multiply it the whole number. Multiply everything out, make it a mixed number, and you're done. (Note: You may have to make the whole number a fraction to multiply it properly. To do this, simply place the whole number in the numerator and make the denominator 1.)
Reciprocal
it is called a reciprocol
Switch the numerator with the denominator.
Taking the reciprocal.
you switch the numerator with the denominator then multiply the numerator first then the denominator.
You Switch The Numerator & Denominator of the second fraction and then you change the division to multiplication. For example: 1/2 divided by 2/3 becomes 1/2 times 3/2, and you would multiply straight across (numerator by numerator and denominator by denominator) to get 3/4.
To find the reciprocal of a fraction, simply flip it over. For example, if you have the fraction 3/4, its reciprocal would be 4/3. Essentially, you swap the numerator and denominator.
Take the 2nd fraction, switch the denominator with the numerator, multiply across, simplify.
The resulting number is the reciprocal of the original number.
inversion
Divide the top number(numerator) by the bottom number(denominator). 3/5 3 divided by 5 =.60 60%
-19/9. When you have a fraction divided by a fraction, you multiply the first fraction by the second fraction flipped over (switch the numerator and denominator). The sevens cancel out, and you are left with -19/9.