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How come you change a division sign into a multiplication sign for dividing fractions?
Flip the fraction around (the one after the division sign) and change it to a multiplication sign. (swap the numerator with the denominator) so 2/(3/10) = 2*(10/3)
The reason you do so is if you think of multiplication and dividing revolving around the number 1, in multiplying if you are above 1 then you are increasing if you are lower you are increasing. The opposite is the same of division. Effectively, if you think about it multiplication is the inverse of division and the other way around as well, so by flipping the fraction you are inverting it, so instead of dividing by 0.5 you multiply by 2. I hope this makes sense, it could be shown algebraically, but it is probably easier to understand this way.
What else can I help you with?
Tell you how to divid fractions?
To divide fractions, you need to multiply the first fraction by the reciprocal of the second fraction. This means you keep the first fraction the same, change the division sign to multiplication, and flip the second fraction upside down. For example, to divide 1/3 by 1/4, you would multiply 1/3 by 4/1, which equals 4/3 or 1 and 1/3.
Why is multiplying or dividing the numerator and denominator by the same nonzero number the same as multiplying or dividing the fraction by 1?
because of mathematical equivalence: it doesn't change the result
How do you change 9.4 into a mixed number?
Any number divided by one or multiplied by one remains unchanged (identity properties of multiplication & division) so 9.4 = 9.4/1 Mulitply by 10/10 (which is 1 - so the value of your number does not change) = 94/10 = 9 4/10 = 9 2/5
What is the property of 5xp equals px5?
The property you are referring to is the commutative property of multiplication. This property states that the order in which numbers are multiplied does not change the result. In this case, 5xp is equivalent to px5 because multiplication is commutative, meaning you can rearrange the factors without affecting the product.
Why does the sign change when multiplying and dividing negative numbers?
It changes because two negatives make a positive!!!!!!!!!!!!
What is the difference between multiplication and division fractions?
In dividing fractions you have to change division to multiplication and change the second fraction into a recipracol(flip the fraction.
Why change mixed numbers to improper fractions?
For addition, subtraction, division and multiplication with other fractions
How is the multiplication of fractions and division of fractioms alike and different?
Division is the multiplication by the reciprocal or multiplicative inverse. In simpler language, to divide by a fraction change the division sign to multiplication and flip the fraction.
What is kcf in fractions?
K = keep the first fraction C = change division sign to a multiplication sign F = flip last fraction You can only use KCF for dividing fractions. i learnt that during math class so
What is an algorithm for dividing fractions?
keep change flip - which means keep the first # - chage the division sign to multiplication- The reciprocal means flip the 2 # ex.7/2-2/7.
Why do you change mixed numbers to improper fractions before multiplying and dividing?
Because common denominators allow adding and subtracting of numerators. Improper fractions also have simplified rules over mixed numbers when performing multiplication and division.
What is another way to divide 3 by one-sixth?
3 divided by 1/6 is the same thing as 3x6....you always flip the fraction after the division sign, and change it to multiplication when dividing fractions -sophmore in high school-
Does it matter what way the fractions are when your dividing?
Yes, you must flip them. for example, if you had 3/4 divided by 6/7, you would have to change the division sign to a multiplication sign. Then, you flip the second fraction. In this case, 7/6.
What is a reciprocal in math fractions?
A reciprocal is when you take the second fraction in a division problem and flip it Then change the sign to multiply. THIS ONLY WORKS WHEN YOU ARE DIVIDING FRACTIONS!
What happens when you divide a fraction by one?
when ever you divide fractions you must always flip the fraction you are dividing and change the division sign to multiplication, ex. 1/2 divded by 1 = 2/1 multiplied by 1/1 which equals 2
Does the inequality sign change when both sides are multipled or divided when using fractions Why or why not?
Not if the fraction is positive. But yes if the fraction is negative. Study the rules of multiplication and division by integers, and you wil see why. Multiplication by a fraction is simplty multiplication by one integer followed by division by another (or the other way round).
Do you change signs when dividing fractions?
Yes
