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When you reduce fractions like 300 over 450 to 2 over 3 are you using GCF or LCM?
Wiki User
∙ 10y ago
more similar to the highest common factor. The way I do them is to divide top and bottom by the same until I cannot see anything else to simplify.
Of course each time you are dividing by a common factor, so it would be HCF if you did it all in one go
Wiki User
∙ 10y ago
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How do you add and subtract by fractions?
If the fractions have the same denominator, add and subtract the numerators as if the denominators weren't there and put the result over that denominator. Reduce if possible. If the fractions have different denominators, find the LCM of the denominators and convert the fractions to equivalent fractions with like denominators. Then add and subtract the numerators as if the denominators weren't there and put the result over that denominator. Reduce if possible.
What does 2 over 0 reduce to?
It reduces to zero. That is the Zero Property of division/fractions.
Is the equvalent fractions of 5 over 7 equal to 12 over 36?
No, because if you reduce 12/36 then you get 3 and if you reduce 5/7 you get a decimal, not 3.
What are two equivalent fractions for 6 over 20?
3 over 10; and 12 over 40 (they're all the same if you reduce them)
How do you work out percetages as fractions?
Put them over 100. Reduce if possible. 27 percent = 27/100
How do you add and subtract by fractions?
If the fractions have the same denominator, add and subtract the numerators as if the denominators weren't there and put the result over that denominator. Reduce if possible. If the fractions have different denominators, find the LCM of the denominators and convert the fractions to equivalent fractions with like denominators. Then add and subtract the numerators as if the denominators weren't there and put the result over that denominator. Reduce if possible.
What does 2 over 0 reduce to?
It reduces to zero. That is the Zero Property of division/fractions.
Is the equvalent fractions of 5 over 7 equal to 12 over 36?
No, because if you reduce 12/36 then you get 3 and if you reduce 5/7 you get a decimal, not 3.
What are two equivalent fractions for 6 over 20?
3 over 10; and 12 over 40 (they're all the same if you reduce them)
How do you work out percetages as fractions?
Put them over 100. Reduce if possible. 27 percent = 27/100
What is greater 9 over 21 or 6 over 14?
Neither, Both fractions reduce to 3/7, so they are equal.
What is 5 over 12 in unlike and like fractions?
Like and unlike fractions only make sense when you have two [or more] fractions. One fraction, such as 5/12, is always like itself.
What is found by flipping a fraction over?
you do that if you need to divide fractions, its called using the recipical.
What is the equivalent fraction for three over four?
Equivalent fractions are multiples of the reduce fraction. For 3/4, equivalent fractions would include 6/8, 9/12, 12/16, etc.
Fractions what does 3 over 10 look like?
3/10
How do you add fractions with like denominators?
Add the numerators and put that over the denominator; reduce the final fraction. example: 1/8 + 3/8 = (1 + 3)/8 = 4/8 = 1/2
How do you convert percentages to fractions in simplest form Eg... 7 over 8 percent equals?
change it to a decimal. then change it to a fraction. and then reduce it
