Math, asked by rohit155113, 1 year ago

convert the following in the decimal form - 7 by 80

Answers

Answered by shine4205

Answer:

The answer is -0.0875

Step-by-step explanation:

-7/80

= -0.0875

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rohit155113: rough pick

shine4205: this is not rough pick but with solutions

Answered by shameemamk

Answer:

0.0875

Step-by-step explanation:

7/80 =

7/(2^4x5)

=(7x5^3) / [(2^4)(5^4)]

= (7x125)/10^4

=875/10000

=0.0875

rohit155113: divided method rough pick

rohit155113: Express -128by5120 with denominator 40

shameemamk: We are making the denominator multiples of 10. For that we have make multiples of 2 and 5 with equal powers are prime factorization of 10 is 2x5.

shameemamk: or you can do like this. 100/80=1.25. 100/80=12.5, 10000/80=125. So multiply numerator and denominator by 125 so that the denominator will become a multiple of 10. Then it will be easy to divide. Hope you understood

rohit155113: convert the following in the decimal form -7by80

shameemamk: Didn’t notice the - sign

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convert the following in the decimal form - 7 by 80