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Lunna [17]
3 years ago
10

What is the sum of the fraction below? 1/7+3/8

Mathematics
1 answer:
Ksivusya [100]3 years ago
8 0

Answer:

  \frac{29}{56}

Step-by-step explanation:

Take LCM of 7 and 8 to make the denominators same.

LCM = 56

and then solve :

      \frac{1}{7} + \frac{3}{8} = \frac{(1 \times 8) + (3 \times 7)}{7 \times 8} = \frac{29}{56}

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Answer:

The number of boys are 18 and the number of girls are 30.

Step-by-step explanation:

The ratio of number of girls to the boys = 3 : 5

Let the number of girls is g and boys is b initially.

b : g = 3 : 5

5 b = 3 g ..... (1)

Now, girls are 6 + g and boys are b - 9

So, the ratio is

(b - 9) : (6 + g) = 1 : 4

4 b - 36 = 6 + g

4 b - g = 42 .... (2)

From ( 1 ) and ( 2 )

4 b - \frac {5 b}{3}= 42\\\\\frac{7 b }{3} = 42\\\\b = 18

And , g = 5 x 18/3 = 30

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Shtirlitz [24]

Answer:

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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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