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Determine the outcomes of the following computations by the "Long Division method": i) 3478 / 38 ii) 6048 / 48

Mathematics

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Answers

3 parts
b(i)

1158115_8

b(ii)

1418141_8

b(iii)

751675_{16}

Step-by-step solution

11 steps

Here are the outcomes of the computations using the Long Division method:

Part b(i)· 3 steps

3478÷38347_8 \div 3_8

Determine the outcomes of the following computations by the "Long Division method"

  1. Divide 383_8 by 383_8.

    The quotient is 181_8.

    138)3478‾−30\begin{array}{r} 1 \\ 3_8 \overline{\smash{)} 347_8} \\ -3 \\ \hline 0 \end{array}
  2. Bring down 484_8.

    Divide 484_8 by 383_8. The quotient is 181_8 with a remainder of 181_8.

    1138)3478‾−304−31\begin{array}{r} 11 \\ 3_8 \overline{\smash{)} 347_8} \\ -3 \\ \hline 04 \\ -3 \\ \hline 1 \end{array}
  3. Bring down 787_8.

    The new number is 17817_8. Divide 17817_8 by 383_8.
    In decimal: 178=1×8+7=151017_8 = 1 \times 8 + 7 = 15_{10}. 38=3103_8 = 3_{10}. 15÷3=515 \div 3 = 5. So, 38×58=1783_8 \times 5_8 = 17_8. The quotient is 585_8.

    115838)3478‾−304−317−170\begin{array}{r} 115_8 \\ 3_8 \overline{\smash{)} 347_8} \\ -3 \\ \hline 04 \\ -3 \\ \hline 17 \\ -17 \\ \hline 0 \end{array}

    The remainder is 080_8.

    The outcome is 1158\boxed{115_8}.

Part b(ii)

1418141_8

6048÷48604_8 \div 4_8

  1. Divide 686_8 by 484_8.

    The quotient is 181_8 with a remainder of 282_8.

    148)6048‾−42\begin{array}{r} 1 \\ 4_8 \overline{\smash{)} 604_8} \\ -4 \\ \hline 2 \end{array}
  2. Bring down 080_8.

    The new number is 20820_8. Divide 20820_8 by 484_8.
    In decimal: 208=2×8+0=161020_8 = 2 \times 8 + 0 = 16_{10}. 48=4104_8 = 4_{10}. 16÷4=416 \div 4 = 4. So, 48×48=2084_8 \times 4_8 = 20_8. The quotient is 484_8.

    1448)6048‾−420−200\begin{array}{r} 14 \\ 4_8 \overline{\smash{)} 604_8} \\ -4 \\ \hline 20 \\ -20 \\ \hline 0 \end{array}
  3. Bring down 484_8.

    The new number is 04804_8. Divide 484_8 by 484_8. The quotient is 181_8.

    141848)6048‾−420−2004−40\begin{array}{r} 141_8 \\ 4_8 \overline{\smash{)} 604_8} \\ -4 \\ \hline 20 \\ -20 \\ \hline 04 \\ -4 \\ \hline 0 \end{array}

    The remainder is 080_8.

    The outcome is 1418\boxed{141_8}.

Part b(iii)

751675_{16}

33316÷716333_{16} \div 7_{16}

Hexadecimal values: A=10, B=11, C=12, D=13, E=14, F=15.

  1. 7167_{16} cannot divide 3163_{16}.

    Consider 331633_{16}.
    In decimal: 3316=3×16+3=511033_{16} = 3 \times 16 + 3 = 51_{10}. 716=7107_{16} = 7_{10}.
    51÷7=751 \div 7 = 7 with a remainder of 2. So, 716×716=4910=31167_{16} \times 7_{16} = 49_{10} = 31_{16}. The quotient is 7167_{16}.

    7716)33316‾−312\begin{array}{r} 7 \\ 7_{16} \overline{\smash{)} 333_{16}} \\ -31 \\ \hline 2 \end{array}
  2. Bring down 3163_{16}.

    The new number is 231623_{16}. Divide 231623_{16} by 7167_{16}.
    In decimal: 2316=2×16+3=351023_{16} = 2 \times 16 + 3 = 35_{10}. 716=7107_{16} = 7_{10}.
    35÷7=535 \div 7 = 5. So, 716×516=3510=23167_{16} \times 5_{16} = 35_{10} = 23_{16}. The quotient is 5165_{16}.

    7516716)33316‾−3123−230\begin{array}{r} 75_{16} \\ 7_{16} \overline{\smash{)} 333_{16}} \\ -31 \\ \hline 23 \\ -23 \\ \hline 0 \end{array}

    The remainder is 0160_{16}.

    The outcome is 7516\boxed{75_{16}}.

Part b(iv)· 3 steps

1B9016÷C161B90_{16} \div C_{16}

Hexadecimal values: A=10, B=11, C=12, D=13, E=14, F=15.
C16=1210C_{16} = 12_{10}.

  1. C16C_{16} cannot divide 1161_{16}.

    Consider 1B161B_{16}.
    In decimal: 1B16=1×16+11=27101B_{16} = 1 \times 16 + 11 = 27_{10}. C16=1210C_{16} = 12_{10}.
    27÷12=227 \div 12 = 2 with a remainder of 3. So, C16×216=1210×210=2410=1816C_{16} \times 2_{16} = 12_{10} \times 2_{10} = 24_{10} = 18_{16}. The quotient is 2162_{16}.

    2C16)1B9016‾−183\begin{array}{r} 2 \\ C_{16} \overline{\smash{)} 1B90_{16}} \\ -18 \\ \hline 3 \end{array}
  2. Bring down 9169_{16}.

    The new number is 391639_{16}. Divide 391639_{16} by C16C_{16}.
    In decimal: 3916=3×16+9=571039_{16} = 3 \times 16 + 9 = 57_{10}. C16=1210C_{16} = 12_{10}.
    57÷12=457 \div 12 = 4 with a remainder of 9. So, C16×416=1210×410=4810=3016C_{16} \times 4_{16} = 12_{10} \times 4_{10} = 48_{10} = 30_{16}. The quotient is 4164_{16}.

    24C16)1B9016‾−1839−309\begin{array}{r} 24 \\ C_{16} \overline{\smash{)} 1B90_{16}} \\ -18 \\ \hline 39 \\ -30 \\ \hline 9 \end{array}
  3. Bring down 0160_{16}.

    The new number is 901690_{16}. Divide 901690_{16} by C16C_{16}.
    In decimal: 9016=9×16+0=1441090_{16} = 9 \times 16 + 0 = 144_{10}. C16=1210C_{16} = 12_{10}.
    144÷12=12144 \div 12 = 12. So, C16×C16=1210×1210=14410=9016C_{16} \times C_{16} = 12_{10} \times 12_{10} = 144_{10} = 90_{16}. The quotient is C16C_{16}.

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