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If we have no pizza, and divided it between you and me, how much do we get? ZERO.
However, you want equivalent fractions to 0/2. To get an equivalent fraction, you multiply the numerator (the number on the top) and the denominator (the number on the bottom) by the same number.
Count the number of digits (d) to the right of the decimal point of the decimal number.Example: 2.56 has 2 digits to the right of the decimal point, so d=2.
Calculate the factor (f) for making the decimal number an integer:
f = 10 to power d
Example: f = 10 power 2 = 100
Multiply and divide the decimal number x by the factor f:
x * f / f = y / f
Example:
2.56 * 100 / 100 = 256 / 100
Find the greatest common divisor (gcd) of the fraction.
Example:
gcd(256,100) = 4
Reduce the fraction by dividing the numerator and denominator by the gcd value:
Example:
256 / 100 = (256/4) / (100/4) = 64/25
Example
One percent is equal to one hundredth:
1% = 1/100
So in order to convert percent to fraction, divide the percent by 100% and reduce the fraction.
For example 56% is equal to 56/100 with gcd=4 is equal to 14/25:
56% = 56/100 = 14/25
That depends on the problem.
A mixed number is a number composed of an integer part and a proper fraction (fraction where the numerator is less than the denominator
A measure gives you 1 foot and 1/ 2 foot. Instead of writing 1.5 feet some people write 1 1/2. If you don't like mixed number you can convert them into improper fractions (fraction where the numerator is greater than the denominator.
1 1/2=1+1/2=(1*2+1)2=3/2
If you use them in a subtraction you should be careful because
7- 5 1/2=7-(5+1/2)=7-5 -1/2=2-1/2=(2*2-1)/2=3/2
You can multiply them, divide them, but any other operation quickly becomes ridiculously complicated. Some people like to use them. I don't much care for them.
In multiplication and division the general rule is to convert every number into its (reduced) improper fraction equivalent and then operate, using the rules for manipulating fractions.
You convert the fractions so they have the same denominator (bottom number) then subtract the numerators (top numbers). 7/2 is the same as 28/8 (8 divided by 2 = 4. 4 times 7 = 28, so the equivalent fraction is 28/8. You can check by dividing 8 into 28 = 3 1/2 = 7/2. So, 3/8 - 28/8 = negative 25/8 or 3 1/8.
Say you have a repeating decimal number 0.714285 714285 714285 etc. You identify the period (the repeating part) and in this case it is 714285. You count the number of decimal places in the period: here it is 6. Your equivalent fraction is Fraction= period/(99...9) where the number of 9's in the denominator is equal to the number of decimal places in the period. For this case, that is 6. Thus 0.714285 714285 714285 etc.= 714285 / 999999
Reduce the fraction and you will find 5/7
This technique works for a repeating decimal number where the period starts just after the decimal mark.
If the periodic part does not start right after the decimal mark there are modifications to be made.
If the fraction has just be typed in, press [SHIFT][=] instead of just [=] to get the result displayed as a fraction. However the fraction displayed will be the irreducible form of your fraction (equivalent but reduced to its simplest terms).
If you do not want fractions at all ( input and output) Press [SHIFT][MODE] and select [2:LineIO]. This is the entry mode of the old generation of calculators.
The other IO mode is MthIO: In this mode fractions are entered as in textbooks, radicals are also entered as in a textbook. If by any chance you like this new IO format but just want the final results displayed as decimal, you can do your calculations in MthIO to get the result. Once displayed the result can be converted into decimal format by pressing the [S<>D] key.
I need help with equivalent fractions
I need help with equivalent fractions
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