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8 November, 22:22

Ms. Crest surveyed her class and found that 15 out of

30 students brushed their teeth more than twice a day.

Write this ratio as a fraction in simplest form, then write it

as a % and a decimal.

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Answers (1)
  1. 8 November, 22:39
    0
    15/30 brushed their teeth more than twice a day.

    Fraction 1/2 < - (Simply by dividing by HCF)

    Percentage = 50% (15 divided by 30 multiplied by 100) or you realise the 15 is half of 30. A half is 50%

    Decimal = 0.5 (50% divided by 100)
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