Question

plz answer me fast,I will mark u as a brainllist​

Answer 1

Hello!

$\frac{5}{7}$ × $\frac{3}{4}$ + $\frac{1}{2}$

First thing we need to do!

    First remember PEMDAS (Parenthesis, Exponents, Multiplication, Division, Addition, Subtraction). It is important to remember this because it is the order in which you will answer the problem.

    Since we don´t have parenthesis nor exponents, the first part we will answer is the multiplication part.

    The multiplication of fractions is done directly, which means you do not have to search for a common denominator, or alter the order of the fraction.

$\frac{5}{7} (\frac{3}{4})=\frac{5(3)}{7(4)}=\frac{15}{28}$

Second thing!

    Now we have to add $\frac{15}{28}$ and $\frac{1}{2}$.

    When adding fractions it is important to remember that you can´t add the fractions unless the denominators (number under the fraction) are equal.

    Since the fractions we´re adding don´t have the same denominator we have to find a common denominator. We can do this by finding the M.C.M.

In this case, the M.C.M of 2 and 28 is 28.

Now we rewrite the fractions based on the common denominator:

$\frac{15}{28} =\frac{15}{28}$

$\frac{1}{2} =\frac{14}{28}$

$\frac{15}{28} + \frac{14}{28} =\frac{29}{28}$ or $1\frac{1}{28}$

So the answer to your question is $1\frac{1}{28}$

If you have any questions feel free to ask me in the comments.

  Greetings!