What is 15/21 subtracted by 5/7 equal ?

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Step-by-step explanation:

Step 1:  Make common denominators

What is the LCM of 21 and 7:  7

So, we need to convert both fractions into a 21 denominator.

15/21 * 1/1 = 15/21

5/7 * 3/3 = 15/21

Step 2:  Subtract the numbers

15/21 - 5/7 is same as 15/21 - 15/21

15/21 - 15/21

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given that triangle abc is transformed two times to get triangle

a"b"c"

first abc is transformed in to a'b'c' as follows:

the coordinates of a are (1,-1) and transformed into a'(-1,1)

similarly b (4,-2) became b'(-4,2) and

c(7,-2) became c'(-7,2)

i.e. (x,y) becomes (-x,-y)

this is nothing but reflection about a point here origin.

thus first transformation is reflection on the origin.

next is exactly shifting 3 units down

source:

51-50

step-by-step explanation: