Transcript Slide 1
Fraction, Decimal, Percentage, Proportionality, Numerator, Denominator, Integer Look for posters / adverts that offer a percentage or fraction discount. Take a photo on your phone! Learn the following common equivalencies: ½ = 0.5 = 50% ¼ = 0.25 = 25% 1/5 = 0.2 = 20% 1/10 = 0.1 = 10% ¾ = 0.75 = 75% 1) Write down 5 equivalent fractions to 4/5 2) Sally says, ‘If the denominator of a fraction is twice the numerator, the fraction is equivalent to one half.’ Is Sally correct? Explain how you know. 3) Jane gets 16 out of 20 on a test. What percentage did she get? (Hint: think about what percent means!) 4) Work out a) ¾ of 12 b) 2/5 of £30 c) 2/3 of one hour (give your answer in minutes) 5) Work out a) 10% of £70 b) 25% of 24cm c) 15% of £4.20 6) There are 250 students in Forster’s Primary School. 24% of them take sandwiches for their lunch. How many students take sandwiches for their lunch? 1/3 = 0.33… = 33.3…% Use the given equivalencies in the ‘Memory’ section to find the following equivalencies. Explain how you found each one: A) 2/5 B) 2/3 C) 3/10 D) 1¾ E) 1/20