MATH SOLVE

3 months ago

Q:
# What is the reduced answer to 4/9 multiples by 4/5 equal

Accepted Solution

A:

first, we know that when multiplying fractions, we multiply both the numerator and denominator.

so, in 4/9 • 4/5,

4•4 = 16, and

9•5 = 45

so, 4/9 • 4/5 = 16/45.

now, we’ll look for the Least Common Factor

factors are numbers that you can multiply together to = another number.

the LEAST common Factor is the # that is smallest that you can divide both numbers by, in an equation and get a whole number.

for instance, 3•3 and 1•9 are the only ways to get 9, so, the factors are 1, 3, 9

let’s look for the LCF in 16 and 45. -

if we find the ways to get 16, we have:

1•16, 2•8, and 4•4

so, the factors are 1, 2, 4, 8, and 16.

this is called FACTORING :)

the ways to get 45 are...

1•45, 3•15, and 5•9, so the FACTORS are

1, 3, 5, 9, 15, & 45.

- compare the factors of 16 & 45,

none of them are the same besides 1, and we know that dividing these numbers by 1 will not do anything.

because of this, we can not reduce 16/45, so the reduced answer to 4/9 • 4/5 = 16/45

so, in 4/9 • 4/5,

4•4 = 16, and

9•5 = 45

so, 4/9 • 4/5 = 16/45.

now, we’ll look for the Least Common Factor

factors are numbers that you can multiply together to = another number.

the LEAST common Factor is the # that is smallest that you can divide both numbers by, in an equation and get a whole number.

for instance, 3•3 and 1•9 are the only ways to get 9, so, the factors are 1, 3, 9

let’s look for the LCF in 16 and 45. -

if we find the ways to get 16, we have:

1•16, 2•8, and 4•4

so, the factors are 1, 2, 4, 8, and 16.

this is called FACTORING :)

the ways to get 45 are...

1•45, 3•15, and 5•9, so the FACTORS are

1, 3, 5, 9, 15, & 45.

- compare the factors of 16 & 45,

none of them are the same besides 1, and we know that dividing these numbers by 1 will not do anything.

because of this, we can not reduce 16/45, so the reduced answer to 4/9 • 4/5 = 16/45