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Licemer1 [7]
3 years ago
10

What is a common denominator?

Mathematics
2 answers:
lesya692 [45]3 years ago
7 0

<em><u>least common denominator is the lowest common multiple of the denominators of a set of fractions. It simplifies adding, subtracting, and comparing fractions.</u></em>

Irina-Kira [14]3 years ago
6 0

Answer:

12

Step-by-step explanation:

Because it is the lowest number that both 4 and 6 can reach by multiplying with whole numbers

:)

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What is this tool used for ?
stealth61 [152]

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A photographer charges $12 for a set of 20 pictures. Each picture cost the same amount. At this rate, how many pictures cost $30
never [62]

Answer:

Step-by-step explanation:

20/12 = 1 2/3

30 ÷ 1 2/3

= $18

3 0
2 years ago
Beatrice built about 1/3 of a sandcastle. Linda built 4/7 of the same castle. What fraction of the sandcastle did they build tog
wlad13 [49]

Answer    

Find out the what fraction of the sandcastle did they build together .

To prove

Let us assume that the fraction of the sandcastle  they build together be x .

As given

Beatrice\ built\ about\ \frac{1}{3}\ of\ a\ sandcastle.

Linda\ built\ \frac{4}{7}\ of\ the\ same\ castle.

Than the equation becomes

x = \frac{1}{3} +\frac{4}{7}

L.C .M of (3,7) = 21

solving

x = \frac{7 + 3\times4}{21}

x = \frac{19}{21}

Therefore the fraction of the sandcastle did they build together be

x = \frac{19}{21}

Hence proved



4 0
3 years ago
Pls help me if I cabbnnnnsbdhdhdjdjxjkxx
lakkis [162]

Answer:

33.49 mm³

Step-by-step explanation:

The formula of volume of sphere

=  \frac{4}{3} \pi {r}^{3}

The volume of the sphere

=  \frac{4}{3}  \times 3.14 \times  {2}^{3}

=  \frac{100.48}{3}

= 33.4933333...

= 33.49 mm³ (rounded to the nearest hundredth)

3 0
3 years ago
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