Best Answer

You do it the obvious way.

Take p, q in Q, the rationals

By definition, we can write p = m/n and q = r/s where m, r are integers, n and s are natural.

we define pq (p times q) = (mr)/(ns)

p/q = pq^-1 where q^-1 denotes q's multiplicative inverse s/r

Remark: you cannot divide by 0 here because

1) 0 have no multiplicative inverse

2) if r = 0. s/r is undefined.

Q: How do you divide multiply fraction?

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multiply by the reciprocal

When you wish to divide by a fraction, you would flip the divisor and multiply by the new fraction.

Convert the mixed number into an improper fraction then divide the fraction and improper fraction as normal (invert the divisor and multiply) and simplify the result (including converting any improper fraction into a mixed number)

To change a fraction into percentage form, divide 100 by the denominator (the number underneath) and multiply by the numerator. So, if the fraction was 3/5, you would divide 100 by 5 (20) and multiply by 3, giving 60%. 60% of 1 dollar is 60 cents. the other way is to multiply the numerator by 100 and divide by the denominator (ie. multiply 3 by 100 (300) and divide by 5 = 60(%))

Multiply 48 by five then divide the answer by twelve...

Related questions

The inverse of the fraction.

Multiply by its inverse.

multiply by the reciprocal

Divide the fraction by 100, and you will get the percentage of a fraction.

"Dividing Fractions is easy as pie, flip the second and multiply." Flip the second fraction, and multiply, and reduce.

*divide transform the mixed number into a fraction and then divide like a normal fraction (multiply by reciprocal).

Divide then multiply by 100.

Flip the bottom fraction and multiply it to the top fraction.

Just flip the fraction upside down and multiply

To divide a fraction by a fraction, multiply the first fraction by the reciprocal of the second one.

To multiply two fractions, multiply the numerators together, then the denominators, then put the new numerator over the new denominator. Simplify if you can. To divide fractions, invert the second fraction and multiply as just described.

You multiply the negative number by the reciprocal of the fraction.