Question

Which expression results in a sum or difference of five and six fifty fourths? (3 points) a eight and seven ninths minus three and four sixths b six and eight ninths minus one and five sixths c four and one sixths plus one and one ninth d three and three sixths plus two and four ninths

Answer 1

Answer: A

Step-by-step explanation: I did the assesment

Answer 2

a) eight and seven ninths minus three and four sixths

Explanation:

The required result is
`5(6)/(54)`

a)

`8(7)/(9) -3(4)/(6)\\\\=(79)/(9) -(22)/(6) \\\\Simplifying\ the\ expression:\\\\=(474-198)/(54) \\\\=(276)/(54)\\\\=5(6)/(54)`

b)

`6(8)/(9) -1(5)/(6)\\\\=(62)/(9) -(11)/(6) \\\\Simplifying\ the\ expression:\\\\=(372-99)/(54) \\\\=(273)/(54)\\\\=5(3)/(54)`

c)

`4(1)/(6) +1(1)/(9)\\\\=(10)/(9) +(25)/(6) \\\\Simplifying\ the\ expression:\\\\=(60+225)/(54) \\\\=(285)/(54)\\\\=5(15 )/(54)`

d)

`3(3)/(6) +2(4)/(9)\\\\=(22)/(9) +(21)/(6) \\\\Simplifying\ the\ expression:\\\\=(132+189)/(54) \\\\=(321)/(54)\\\\=5(51 )/(54)`