What is the anwser to 1/4 + 5/8 Please explain.....

Mathematics

2 answers:

svet-max [94.6K]3 years ago

7 0

Only add 1 and 5 first, then your denominator would be 32 because 8 times 4 is 32.

Katena32 [7]3 years ago

7 0

The answer is 7/8. First, I found common denominators of 32. Then I multiplied 1*8 and got 8 so 1/4 is equal to 8/32. Then I multiplied 5*4 and got 20 so 5/8 is equal to 20/32. Then I added 20 and 8 and got 28. So 1/4+5/8 equals 28/32 but then you simplify by finding the common factor of 4 so u divide 28 by 4 which is 7 and then you divide 32 by 4 which is 8 so your answer is 7/8.

You might be interested in

2^x=3^x+1 what are the exact approximate solutions

Mashcka [7]

Answer:

Step-by-step explanation:

The goal of course is to solve for x. Right now there are 2 of them, one on each side of the equals sign, and they are both in exponential positions. We have to get them out of that position. The way we do that is by taking the natural log of both sides. The power rule then says we can move the exponents down in front.

$ln(2^x)=ln(3^{x+1})$ becomes, after following the power rule:

x ln(2) = (x + 1) ln(3). We will distribute on the right side to get

x ln(2) = x ln(3) + 1 ln(3). The goal is to solve for x, so we will get both of them on the same side:

x ln(2) - x ln(3) = ln(3). We can now factor out the common x on the left to get:

x(ln2 - ln3) = ln3. The rule that "undoes" that division is the quotient rule backwards. Before that was a subtraction problem it was a division, so we put it back that way and get:

$x(\frac{ln(2)}{ln(3)})=ln(3)$ . We can factor out the ln from the left to simplify a bit: