HW: Ex 4a 1,6,8,13,15,17 and 18 15 minutes, 45 minutes 15 45 6) 20 minutes, 2 hours 2 hours = 60 x 2 = 120 minutes 20 120 = 1 3 = 1 6

HW: Ex 4a 1,6,8,13,15,17 and 18 8) 25 cm2, 400 cm2 25 400 13) 800g, 2.25 kg 2.25 x 1000 = 2 250 800 2250 = 1 16 = 16 45 Division by 5

HW: Ex 4a 1,6,8,13,15,17 and 18 15) Sally’s journey to school costs 55cent on one bus and 35cent on another bus Find the total cost of her journey 55 + 35 = 90 cent b) What fraction of the total cost arises from each bus Division by 5 = 11 18 = 7 18 55 90 35 90

HW: Ex 4a 1,6,8,13,15,17 and 18 17) Simon gets €2.40 a week pocket money. If he spends €1.35, what fraction of his pocket money is left? 2.40 – 1.35 = €1.05 left Division by 15 = 7 16 105 240

HW: Ex 4a 1,6,8,13,15,17 and 18 18) When she left home, Carol’s school bag weighed 𝟑 𝟏 𝟒 𝒌𝒈. When she got to school, she took out her maths text book. Her school bag then weighed 𝟐 𝟏 𝟐 𝒌𝒈. What was the weight of her maths book as a fraction of her bag when she left home? 𝟑 𝟏 𝟒 − 𝟐 𝟏 𝟐 = 𝟑 𝟒 ÷𝟑 𝟏 𝟒 13 4 − 5 2 = 13 4 − 10 4 = 3 4 𝑘𝑔 = 3 4 ÷ 13 4 = 3 13

the FRACTION OF A QUANTITY L.O. To be able to find the FRACTION OF A QUANTITY

3 55 of 5 ‘Whole number ÷ denominator x numerator’ Always use this formula for finding fractions of whole numbers: ‘Whole number ÷ denominator x numerator’ Numerator 3 5 55 of Denominator Whole number

Let’s try one... 3 5 of 5 ÷ 33 = x Denominator Numerator Whole number

Another one... 4 5 6 of 7 ÷ 32 = x Denominator Numerator Whole number

÷ = 6 8 1 of 9 54 x Follow the formula and it’s easy... Denominator Numerator Whole number

Important Note When you are finding a fraction of a whole quantity you are finding a part of that quantity, so: The UNITS of your answer will be the SAME as the units of the whole quantity Your answer will ALWAYS be SMALLER than the whole quantity, because it is part of it!

Top Trumps Activity 3 Players One player mentions an attribute and all of the others must work out the fraction of the quantity to find the value of that attribute The person who has the largest quantity for that attribute, takes the other cards. Whoever wins the cards, will then pick the next attribute Players who end up without cards are out of the game The winner is the last one standing Dizzee Rascal, The Saturdays

Fraction of a Quantity HW STP 8 Pg 68 Exercise 4b 17-19 20 is a challenge – optional question