Use long division to convert 7/11 to a decimal a squiggly lines 1.571428 B squiggly lines 0.63 C 63 d 7.11

1 answer

To convert \( \frac{7}{11} \) to a decimal using long division, follow these steps:

  1. Set up the long division: Divide 7 by 11.

  2. Initial Division:

    • 11 goes into 7, 0 times.
    • Place a decimal point and add a zero, making it 70.
  3. Next Division:

    • 11 goes into 70, 6 times (since \( 11 \times 6 = 66 \)).
    • Write down 6 after the decimal point.
    • Subtract 66 from 70; you get 4.
  4. Bring down a zero:

    • Now you have 40.
    • 11 goes into 40, 3 times (since \( 11 \times 3 = 33 \)).
    • Write down 3.
    • Subtract 33 from 40; you get 7.
  5. Bring down another zero:

    • Now you have 70 again.
    • 11 goes into 70, 6 times.
    • Subtract 66 from 70; you get 4.
  6. Continue the process:

    • Bring down a zero to make it 40.
    • 11 goes into 40, 3 times.
    • Subtract 33 from 40; you get 7.

You will notice that the process is repeating. The decimal continues as \( 0.636363 \ldots \), which we can represent as \( 0.63\overline{63} \).

Thus, the decimal representation of \( \frac{7}{11} \) is \( 0.636363...\).

Now, looking at the answer options:

  • A: ~1.571428
  • B: ~0.63 (using the notation for repeating decimals, we could write it as \( 0.63\overline{63} \))
  • C: 63
  • D: 7.11

The correct choice is B (0.63 with squiggly lines indicating the repeating part).