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What are the common denominators of 12 16 and 18?
The least common denominator is 144. Other common denominators would be multiples of 144. If that's 1/2, 1/6 and 1/8, the LCD is 24.
What is 1 over 2 times 3 over 4?
1 3 / x / 2 4 Multiply the numerators and then the denominators Numerators: 1x3 =3 Denominators: 2x4 =8 So the answer is 3/8 which is 3 ovr 8
What does find the common denominator for the fraction pairs mean?
It means find the LCM of the denominators. In order to add and subtract fractions with unlike denominators, it is necessary to convert them to equivalent fractions with a common denominator. Example: 1/4 + 1/6 The LCM of 4 and 6 is 12. 1/4 = 3/12 1/6 = 2/12
How do you do fraction addition when the denominators are different?
First you find the least common denominator (LCD)of the two denominators.Then multiply the denominators.(example: 1/2 + 1/4 is the problem 1/2 and 1/4 LCD=4 1/2 x 2 =2/4 2/4 + 1/4 =3/4). personally I think fractions are hard so I don't blame you for asking this question
What is a common denominator?
Sometimes fractions have different denominators. These are called unlike fractions. When adding or subtracting fractions with unlike denominators, it is necessary to find a common denominator to get the correct answer. This is the same process as finding the least common multiple. Example 1/30 + 1/42 Factor them. 2 x 3 x 5 = 30 2 x 3 x 7 = 42 Combine the factors, eliminating duplicates. 2 x 3 x 5 x 7 = 210, the lowest common denominator.
What are the common denominators of 12 16 and 18?
The least common denominator is 144. Other common denominators would be multiples of 144. If that's 1/2, 1/6 and 1/8, the LCD is 24.
What is the least common denominators for 1 over 2 and 3 over 5?
The least common denominator for halves and fifths is tenths. So, 1/2 + 3/5 = 5/10 + 6/10 = 11/10 = 1 and 1/10.
What is the common denominator for 9 11 and 1 2?
There are many common denominators for 9/11 and 1/2. The lowest is 22.
What are the common denominators for 150 over 225?
The GCF of 150 and 225 is 75. 150/225 = 2/3 To find a common denominator, you need at least two denominators.
When do you have to use the common denominators?
You use them when there are 2 fractions with different denominators.
What is 1 over 2 plus 2 over 5 by adding fractions with unlike denominators?
9 over 10
What is three fourths minus of one half?
in order to answer this problem you have to first make the denominators (bottom number) match.Do this by finding the smallest common multiple (the smallest number that both of the denominators divide into) of the denominators.3/4 - 1/23/4 - (1/2) x 2 (4 is the smallest common multiple of 2 and 4. Multiply 1/2 by 2 so that the denominators match)3/4 - 2/4 (now you just subtract the numerators (top number). leave the denominators as they are.)3/4 - 2/4 = 1/4
How do you add fraction with common denominators?
To add fractions w/ common denominators, like 2/5 + 1/5, you must ONLY add the numerator, or the top numeral.
What is 2 over 15 multiplied by 25 over 4?
2/15 * 25/4 cancelling out the common factor of 2 in 2 and 4: = 1/15 * 25/2 cancelling out the common factor of 5 in 15 and 25: = 1/3 * 5/2 multiplying numerators and denominators: = 5/6
How do you mines common denominators?
if you have a common denominator, the answer will remain the number that the common denominator is. like say the fraction is 3/4-2/4 (three over four minus two over four), the answer would be 1/4 (one over four)
How do you find the LCD in rational expression?
Factor each of the denominators. Make up an expression that includes all of the factors in the denominators. Example (using "^" for powers):If you have denominators (x^2 - 1), (x-1)^2 and (x+1), factor the first expression, to get denominators: (x+1)(x-1), (x-1)^2 and (x+1). Taking each factor that appears at least once, you get the common denominator: (x+1)(x-1)^2. Note: If a factor, as in this case x-1, appears more than once in one of the expressions, you need to use the highest power.
What is 2 and one over six plus 2 and 3 over 8?
Common denominators are in order here. 1. (2=1)/6 + (2+3)/8. 2. 3/6 + 5/8= find common denomenator which is 24 3. 12/24 +15/24= 4. 27/24 or 1 3/24 or reduced to 1 1/8. Answer is 1 1/8.
