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You may not literally say "multiplied by a half" but multiplying and dividing by fractions are equivalents to doing the other function with an inverse number, most easily in that dividing by 2 is the same as multiplying by (1/2). We don't often multiply and divide by fractions because most of the time we can convert such a problem into a nicer one.

We may use fractions like this, for example, in a test out of 90 marks where one must score 2/3 to pass. This pass mark is obtained by multiplying 90 by (2/3), though this, as said earlier, would usually, even unconsciously with such convenient numbers, be split into "divide by 3, then multiply by 2".

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Q: When do you use multiplying and dividing fractions in the real world?

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How is doing operations (adding, subtracting, multiplying, and dividing) with rational expressions similar to or different from doing operations with fractions?If you know how to do arithmetic with rational numbers you will understand the arithmetic with rational functions! Doing operations (adding, subtracting, multiplying, and dividing) is very similar. When you areadding or subtracting they both require a common denominator. When multiplying or dividing it works the same for instance reducing by factoring. Operations on rational expressions is similar to doing operations on fractions. You have to come up with a common denominator in order to add or subtract. To multiply the numerators and denominators separated. In division you flip the second fraction and multiply. The difference is that rational expressions can have variable letters and powers in them.

No. The commutative and associative laws are valid for any real numbers.

You use fractions for LOTS of things in the real world like money, gambling, shopping, clothing, etc.

To add fractions.

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The question presumes that math classes are not part of the real world, which is debatable. The GCF can be used to simplify fractions. Carpenters and chefs use fractions in practical, non-academic settings.

Yes it is. All pure imaginary numbers (such as 5i) as well as all real numbers and any combination of real & imaginary (by adding, subtractin, multiplying, dividing) makes a complex number.

Every day Ashley put the extra change from her pockets into a glass jar. After 26 weeks,she had saved up $32.00. Ashley decided to use 18 of the money from the jar to buy canned food for a homeless shelter.

Use the GCF to reduce fractions. Use the LCM to add and subtract unlike fractions. Carpenters work with fractions a lot.

Whenever we are dealing with rational fractions.

When adding or subtracting fractions with different denominators and when reducing fractions to their lowest terms.

To simplify fractions.

Cutting pies and cakes to serve or measuring the ingredients to make them.

That presumes that math class is not part of the real world, which is debatable. Finding the greatest common factor can help reduce fractions. In a practical, non-academic setting, chefs and carpenters work with fractions and might have need of this skill.

fractions are used in the English system of mesurement (inches, feet, pounds, etc.)

They are all real numbers. All fractions can be expressed as percentages but not all percentages can be represented as fractions.

Any time you reduce fractions (carpenters do this a lot) you use the concept of GCF.

- iDONT THiNK THERE iS A REAL NAME FOR CROSS-MULTiPYLiNG....

Fractions are real numbers.

Yes.

Fractions can be real, imaginary, or complex. In your case, we're willing to bet that any fraction that you've ever encountered so far has been a real number.

You may get a real answer, or not (if the divisor is 0).

You may get a real answer, or not (if the divisor is 0).

the real gdp per capita

the real GDP per capita