3 years ago

Which one of these numbers do not belong 21 15 6 16 27

Mathematics

2 answers:

NNADVOKAT [17]3 years ago

6 0

That would be 16 because all the others are multiples of 3.

ANEK [815]3 years ago

6 0

Answer:

Step-by-step explanation:

21 divided by 3 is 7

15 divided by 3 is 5

6 divided by 3 is 2

27 divided by 3 is 9

and 16 divided by 3 is 5.33... which isn't similar to the ones above

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1/2 + 5/3 - 1<br>------------------<br> 3/4

Sav [38]

Hey there :)

$\frac{ \frac{1}{2}+ \frac{5}{3} -1 }{ \frac{3}{4} }$
↓ Is the same as
$\frac{1}{2} + \frac{5}{3} -1$ ÷ $\frac{3}{4}$

Since it is a division by fraction, we can multiply by what is called the reciprocal
( The attached picture might help you )
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↓ For this part, we need the common denominator, which is 6
$\frac{1(3)}{2(3)}+ \frac{5(2)}{32)} \frac{1(6)}{1(6)}$ × $\frac{4}{3}$

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↑
Your final answer

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