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2 years ago

Plss help asap!what fraction represents numbers between 21 - 27?

Mathematics

1 answer:

mel-nik [20]2 years ago

7 0

Answer:

0.7778

Step-by-step explanation:

step 1

Address the input parameters and observe what to be found:

Input values:

The fraction = 21/27

What to be found:

Find the decimal expansion of fraction 21/27.

step 2

The numerator is smaller than the denominator of the fraction 21/27, so find how many 10s should be multiplied with both numerator and denominator. Since the number of digits are equal in both numerator and denominator, multiply 10 with both numerator and denominator of 21/27.

=21

x10

step 3

Rearrange the fraction as like the below:

=10 x 21

=210

step 4

Simplify the above expression further:

=210

=189 + 21

= (189

+21

) x1

= (7 + 21

) x 1

step 5

Repeat the step 2 to find the decimal equivalent for the fraction 21/27 in the above expression:

= (7 + 21

) x 1

= (7 + 0.778) x1

step 6

Simplify the above expression further:

= (7 + 0.778) x1

= 7.778 x1

=7.778

= 0.7778

Hence,

21/27 as a decimal is 0.7778

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