Express 711

as a repeating decimal. Mark the cycle of repeating digits with a bar.

Note: You will find the option to add a bar above text in the Geometry ( ∠
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1 answer

To express 711 as a repeating decimal, we start by dividing 1 by 711.

  1. Perform long division of 1 by 711:

    • 1.0000000 (we can add decimal places to help with the division)

    • 711 does not go into 1. It goes into 10 zero times.

    • Next, we consider 100 (0.001 in decimal). 711 still does not fit into it. It goes 0 times.

    • Now consider 1000. 711 fits into 1000 only once.

      \[ 1 \times 711 = 711 \]

      Subtract 711 from 1000:

      \[ 1000 - 711 = 289 \]

    • Bring down another 0 to make 2890.

    • 711 goes into 2890 four times:

      \[ 4 \times 711 = 2844 \]

      Subtract 2844 from 2890:

      \[ 2890 - 2844 = 46 \]

    • Bring down another 0 to make 460.

    • 711 goes into 460 zero times.

      Bring down another 0 to make 4600.

    • 711 goes into 4600 six times:

      \[ 6 \times 711 = 4266 \]

      Subtract 4266 from 4600:

      \[ 4600 - 4266 = 334 \]

    • Bring down another 0 to make 3340.

    • 711 goes into 3340 four times:

      \[ 4 \times 711 = 2844 \]

      Subtract 2844 from 3340:

      \[ 3340 - 2844 = 496 \]

    • Bring down another 0 to make 4960.

    • 711 goes into 4960 six times:

      \[ 6 \times 711 = 4266 \]

      Subtract 4266 from 4960:

      \[ 4960 - 4266 = 694 \]

    • Bring down another 0 to make 6940.

    • 711 goes into 6940 nine times:

      \[ 9 \times 711 = 6399 \]

      Subtract 6399 from 6940:

      \[ 6940 - 6399 = 541 \]

    • Bring down another 0 to make 5410.

    • 711 goes into 5410 seven times:

      \[ 7 \times 711 = 4977 \]

      Subtract 4977 from 5410:

      \[ 5410 - 4977 = 433 \]

    • Bring down another 0 to make 4330.

    • 711 goes into 4330 six times:

      \[ 6 \times 711 = 4266 \]

      Subtract 4266 from 4330:

      \[ 4330 - 4266 = 64 \]

    • Bring down another 0 to make 640.

    • 711 goes into 640 only 0 times.

      Bring down another 0 to make 6400.

    • 711 goes into 6400 nine times:

      \[ 9 \times 711 = 6399 \]

      Subtract 6399 from 6400:

      \[ 6400 - 6399 = 1 \]

This gives us a repeating cycle because we've returned to our original value, leading us back to 1.

From the calculations above, the decimal representation of 1/711 is:

\[ 0.001404 \overline{004} \]

Thus, the repeating decimal is:

\[ 0.001404 \overline{004} \]

with 004 repeating.