The rules for the sign (positive or negative) of the result of a multiplication is the same as division.
Positive * Positive --> Positive
Positive * Negative --> Negative
Negative * Positive --> Negative
Negative * Negative --> Positive
Positive / Positive --> Positive
Positive / Negative --> Negative
Negative / Positive --> Negative
Negative / Negative --> Positive
did you get this off of big ideas learning
Dividing by a non-zero rational number is the same as multiplying by its reciprocal.
Dividing anything by a fraction is equivalent to multiplying the same number by the reciprocal of the fraction. Thus, x / (p/q) = x * (q/p) where x is any number, and p and q are non-zero integers.
Dividing anything by a fraction is the same as multiplying by the fraction's reciprocal. For example, 4 Ã· 2/7 = 4 x 7/2 = 14
It is similar because when you divide fractions you are technically multiplying the second number's reciprocal. (Turning the fraction the other way around)
integers are negative and poitive numbers you can multipy and divide poitive numbers but you can't divide negative numbers because you can't have negitve divded by a other number
Multiplying and dividing integers is real easy. All you have to do is do regular dividing and multiplying keeping in mind these simple rules: RULES: 1: When multiplying or dividing integers, when the numbers are a positive, positive they equal a positive. When the numbers are negative, negative they equal a positive. In other words, same signs equal positive. 2: This rule is very similar to the rule above. The only change is that when the signs are different, they equal a negative. ( negative, positive= negative, positive, negative= negative.) Please correct me if I'm wrong. Multiply integers- my notes from class positive x positive= positive positive x negative= negative negative x negative= positive Divide integers- again my notes from class positive divided by a positive= positive negative divided by a negative= positive negative divided by a positive= negative Dividing integers are simple if the number has a different sign than the other it is always negative but if they have the same sign its always positive ex. -20/5=-4 ex. -20/-4=-5
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.
Multiplying decimals: Example: 2.5 x 1.3 = 3.25 Start by removing the decimal points, thus: 25 x 13 = (the answer is 325) Both 2.5 and 1.3 have 1 decimal places, so 1 + 1 = 2 (decimal places) Counting 2 places, right to left, places the decimal point here: 3.25 Search Google for division of decimals - there are plenty of how to examples and help on the internet!
Dividing by decimal is different from dividing by whole number as you have to multiply by a number to remove the decimal.
Fractions and decimals are usually rational numbers. Besides, multiplying rational and irrational numbers is also similar.
Because they are equivalent ratios
Integers do not have sides so the question does not make sense.
Multiplication of fractions is similar to multiplication of whole numbers. Often, multiplication of fractions can be made easier by first performing cancellation. Cancellation involves dividing both a numerator and a denominator by the same number. This is the same as dividing a fraction by one, and so it does not alter the answer. When cancelling, cross out the old terms and write in the new terms.
It is similar because the nucleus is still dividing, its just with 4xs more cells
They are similar. When dividing fractions, you multiply by the reciprocal. 2/5 divided by 3/4 is the same as 2/5 x 4/3
It is the same thing, since "integers" consists of positive and negative numbers (and zero).
In that you carry out exactly the same steps - AND you must determine the correct position of the decimal point.
Apart from the fact that you are dealing with fractions, not a lot.
Your dividing with variables now.