[\frac{0.125+ 0.027 }{0.5\times0.5+0.09-0.15}] is simplified to

Decimals and Fractions Practice Test 5

Question : 20 of 30

Marks: +1, -0

[{0.125+ 0.027 }/{0.5×0.5+0.09-0.15}]

is simplified to

Solution:

{0.125+ 0.027 }/{0.5×0.5+0.09-0.15}

={(0.5)^3+(0.3)^3}/{( 0.5)^2+(0.3)^2-0.5×0.3}

={(0.5+0.3)[{( 0.5)^2+(0.3)^2-0.5×0.3}]}/{[{( 0.5)^2+(0.3)^2-0.5×0.3}]}

= 0.5+ 0.3 = 0.8

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