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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.
