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Because you can't add or subtract fractions unless they have the same denominator,

so when you run up against two fractions with different denominators, you have to

find a single denominator that works for both of them. There are an infinite number

of common denominators that you could use, but the easiest one to handle without

making mistakes is going to be the smallest one, so it's worth knowing how to find it.

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12y ago

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Why is finding the LCD important in working with fraction?

Finding the least common denominator (LCD) is crucial when working with fractions because it allows for the addition or subtraction of fractions with different denominators. The LCD ensures that all fractions are expressed with a common base, making it easier to combine them accurately. Additionally, using the LCD simplifies calculations and helps avoid errors that can arise from working with multiple denominators. Ultimately, it streamlines the process of solving fraction-related problems.


When doing fractions why is it easier to multiply and divide fractions than add and substract fractions?

It is easier to multiply or divide fractions than to add or subtract fractions because in multiplication, you just have to multiply the numerator by the numerator and the denominator by the denominator. Same applies with division of fractions, except that you have to reciprocate the fraction you're dividing with (divisor) then proceed to multiplication. Whereas, in addition and subtraction of fractions, you still have to get their Least Common Denominator (LCD).


What is the LCD for fractions?

The LCD for fractions is the LCM (least common multiple) of all of the denominators.


IS THE LCD OF TWO FRACTIONS THE SAME AS THE LCM NUMERATORS AND FRACTIONS?

The LCD of two fractions is the same as the LCM of their denominators.


When is it useful to know multiples of a number?

When reducing fractions to their lowest terms or finding the LCD of fractions


How do you minus mix numbers?

You first convert the numbers into top-heavy fractions, then solve like a normal fraction (e.g. LCD, then subtract).


How do you eliminate the fractions of LCd?

This can be done in an equation only. Multiply the entire equation by the LCD. This cancels every denominator leaving an equation with no fractions. EX: x/3 + 2/5 = 3/4 so the LCD for 3,5, and 4 is 60 60(x/3) + 60(2/5) = 60(3/4) 20(x) + 12(2) = 15(3) no more fractions, just solve.


What is the algorithm for adding fractions?

LCD


How the LCD of two or more fractions could be of use?

Once you find the LCD, convert the fractions to their equivalents and then you can add and/or subtract them correctly.


Is finding LCD important in solving fractional or rational equation?

Yes, finding the least common denominator (LCD) is crucial in solving fractional or rational equations. The LCD allows you to eliminate the fractions by multiplying all terms by it, simplifying the equation and making it easier to solve. This step helps avoid errors that can arise from working with fractions directly and ensures you can combine like terms efficiently.


Express the fractions of 34 76 and 58 with the lcd?

how do u exspress fractions how do u exspress fractions


The lcd for the fractions 12 34?

4