Question

PLEASE HELPPPPPP MEEE, JUSTIFY YOUR ANSWER!​

Answer 1

d. True

e. False

f. False

Explanation:

d.

`(12)/(28) * (21)/(18) = (1)/(2)`

`(12 * 21)/(28 * 18) = (1)/(2)`

`(2 * 6 * 3 * 7)/(2 * 2 * 7 * 3 * 6) = (1)/(2)`

`(2)/(2) * (6)/(6) * (3)/(3) * (7)/(7) * (1)/(2) = (1)/(2)`

`1 * 1 * 1 * 1 * (1)/(2) = (1)/(2)`

`(1)/(2) = (1)/(2)`

True

e.

`(15 + 6)/(15 + 3) = (6)/(3) = 2`

`(21)/(18) = (6)/(3) = 2`

`(7)/(6) = (6)/(3) = 2`

False

f.

False. Since the3 numerator and denominator of 2/3 are both multiplied by the same number, 10, to get 20/30, then 20/30 and 2/3 are equivalent fractions and are equal.

Answer 2

Explanation:

d.12/28*21/18=?

252/504=1/2

true

e.(15+6)/(15+3)=?

add them up

21/18

simplify:

7/6 not 6/3

false

f.false,20/30 and 2/3 are the same as the ratio between the numerator and denominator stayed the same. the same number cannot be greater than itself making the statement false