Question

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.

Answer 1

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)