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Pak Reza mempunyai aluminium m dan menambah lagi m...

Pak Reza mempunyai aluminium 8 1 halfm dan menambah lagi 1 1 fourthm. Untuk membuat pintu diperlukan 7 3 over 5m, sisa aluminium Pak Reza adalah ....

  1. 2 1 over 20 straight m

  2. 2 2 over 20 straight m

  3. 2 3 over 20 straight m

  4. 2 1 fifth straight m

Jawaban:

8 fraction numerator 1 space over denominator 2 end fraction plus 1 space 1 fourth minus 7 space 3 over 5 equals 17 over 2 plus 5 over 4 minus 38 over 5 space space space space space space space  space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space equals 170 over 20 space straight m plus 25 over 20 space straight m minus 152 over 20 space straight m space space space space space space space  space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space equals fraction numerator 170 plus 25 minus 152 over denominator 20 end fraction space straight m space space space space space space space  space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space equals 43 over 20 space straight m space space space space space space space  space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space equals 2 fraction numerator space 3 over denominator 20 end fraction space straight m

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