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3 years ago

I don't get any thing about adding subtraction dividing or multiply fractions

Mathematics

1 answer:

svp [43]3 years ago

8 0

Answer:

its easy

Step-by-step explanation:

for example for addition,

15+4/5

=here we will take the LCM of 1 and 5

LCM=5

to make the denominator 5 we should divide

15/1+4/5

=75/5+4/5

=79/5

for division,

3/2÷5/4

just wright the reciprocal of 5/4

=3/2×4/5

here no need to find LCM, u can just multiply the no. just next to it

=12/10 is the ans

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Roll 2: (same as roll 1)
Roll 3: (same as roll 1)

Roll 1 AND Roll 2 AND Roll 3
2/3 x 2/3 x 2/3 = 2³/3³ = 8/27

Answer: $\frac{8}{27}$

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White and black shapes are used in a game Some of the shapes are circles All the other shapes are squares The ratio of white to

PIT_PIT [208]

Answer:

The fraction of all shapes which are square in shape is $\frac{23}{32}$ .

Step-by-step explanation:

Given that , in a game , white and black shapes are used. Some of them are circle in shape and remains are square in shape.

The ratio of white to black shapes are 5:11.

Consider 5x= the number of shapes which are white in color.

11x= The number of shapes which are black in color.

There are (5x+11x)= 16x shapes in the game.

The white circle and white square are in the ratio 3:7.

The number of white square is

$=(\textrm{The number of white shape})\times (\frac{7}{3+7})$

$=(5x)\times (\frac{7}{10})$

$=\frac{7x}{2}$

The black circles and black square are in the ratio 3:8

The number of black square is

$=(\textrm{The number of black shape})\times (\frac{8}{3+8})$

$=(11x)\times (\frac{8}{11})$

=8x

Therefore the total number of shape which are square is

$=\frac{7x}{2}+8x$

$=\frac{7x+16x}{2}$

$=\frac{23x}{2}$

The fraction of all shape are square is

$=\frac{\textrm{shape in square}}{\textrm{Total number shape}}$

$=\frac{\frac{23x}{2}}{16x}$

$=\frac{23}{32}$

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3 years ago