Tag: multiplication of a fractions

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Questions Related to multiplication of a fractions

Multiple choice maths parts and whole multiplication of a fraction multiplication of a fractions multiplication of fraction finding the whole when a fraction is given

Product of $\displaystyle \frac {10} {11} \times \frac {15} {3}\times \frac {0} {5}$ is

  1. $\displaystyle \frac {10} {33} $

  2. 0
  3. $\displaystyle \frac {150} {495} $

  4. None of these
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

zero multiplied by any number is zero..

So $\dfrac{10}{11}\times \dfrac{15}{3}\times\dfrac{0}{5}=0 $

Multiple choice maths parts and whole multiplication of a fraction multiplication of a fractions multiplication of fraction finding the whole when a fraction is given

If  $ \displaystyle \left | x \right | =\left | \frac{-3}{5} \right |  $ and  $ \displaystyle \left | y \right | =\left | \frac{4}{-7} \right |  $ find  $ \displaystyle \left | x \right | \times\left | y \right |  $ 

  1. $ \displaystyle \frac{12}{35} $

  2. 1

  3. 0
  4. $ \displaystyle \frac{35}{12} $
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

$ \displaystyle \left | x \right | =\left | \frac{-3}{5} \right |  $ and  $ \displaystyle \left | y \right | =\left | \frac{4}{-7} \right |  $ 

Since $|x|=|-x|$, therefore $|x|\times |y|=\dfrac{3}{5}\times \dfrac{4}{7}=\dfrac{12}{35}$

Multiple choice maths parts and whole multiplication of a fraction multiplication of a fractions multiplication of fraction finding the whole when a fraction is given

Multiply $1\frac {1}{3}\times 3\frac {1}{4}\times \frac {7}{8}$

  1. $3\frac {18}{24}$
  2. $2\frac {19}{24}$
  3. $3\frac {19}{24}$
  4. $2\frac {18}{24}$
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

To multiply mixed fractions we convert them into improper fractions.

In the question, 1 whole 1/3× 3 whole 1/4 ×7/8
(3×1+1)/3×(4×3+1)/4×7/8
=4/3×13/4×7/8
=2/3×13/4×7/4
=1/3×13/2×7/4
=91/24
=3 whole 19/24
So, option C is the correct answer.

Multiple choice maths parts and whole multiplication of a fraction multiplication of a fractions multiplication of fraction finding the whole when a fraction is given

The daily consumption of milk of a family is $3\dfrac {1}{4}$ litres. The quantity of milk consumed by the family during the month of June 2008 is

  1. $90$ litres
  2. $100\dfrac {1}{2}litres$
  3. $97\dfrac {1}{2} litres$

  4. none of these
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

June 2008 has 30 days.
$30\times 3\dfrac {1}{4}=30\times \dfrac {13}{4}=97\dfrac {1}{2} litres$.

Multiple choice maths parts and whole multiplication of a fraction multiplication of a fractions multiplication of fraction finding the whole when a fraction is given

The product of a fractional number and its multiplicative inverse is

  1. 0

  2. 1

  3. number itself

  4. none of these
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

If the product of two numbers is 1, then each number is known as multiplicative inverse or the reciprocal of one another. ... Hence, the product of a fractional number and its multiplicative inverse is 1