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jbainbynn1296
21.02.2020 •
Mathematics
Hannah is organizing her jewelry box. she wants to divide the 30 charms for her bracelet into equal groups, so that the ratio is 2 to 3. how many charms should she put in each group
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Ответ:
For the first one, we have
since both denominators 4 and x² do not share any common factor, we just multiply them to find the LCD. So, we have A. 4x².
For the next item, we have
we first check the coefficients of the denominators 5 and 7. Since they don't share any common factor, the LCD must have a coefficient of 7(5) = 35. As for the expressions, b and b³c, since they share a common factor of b, we choose the one with the greater exponent. Finally, we have an LCD of 35(b)(c) = 35b³c.
Following the same rules, the LCD of 3m/ (m + n) and 3n/ (m - n) is (m + n)(m -n ).
Adding rational expressions is similar to adding fractions. First, we get the LCD of the expression then express it so that both expressions have a common denominator.
So, we have
For the next item,
Lastly, we have