Homework Check Pg 99-100 Ex 7a 2,4,8,15 2. 𝟏 𝟖 + 𝟑 𝟖 = 𝟒 𝟖 = 𝟏 𝟐 4. 𝟑 𝟏𝟑 + 𝟕 𝟏𝟑 = 𝟏𝟎 𝟏𝟑 8. 𝟏 𝟕 + 𝟐 𝟕 = 𝟑 𝟕 15. 𝟔 𝟏𝟑 + 𝟓 𝟏𝟑 = 𝟏𝟏 𝟏𝟑
Homework Check Pg 99-100 Ex 7a 22,26 Pg 103 Ex 7c 1,2 and 6 22. 𝟏 𝟏𝟒 + 𝟑 𝟏𝟒 + 𝟓 𝟏𝟒 + 𝟐 𝟏𝟒 = 𝟏𝟏 𝟏𝟒 26. 𝟏 𝟏𝟎 + 𝟑 𝟏𝟎 + 𝟑 𝟏𝟎 = 𝟕 𝟏𝟎 1. 𝟖 𝟗 − 𝟐 𝟗 = 𝟔 𝟗 = 𝟐 𝟑 2. 𝟕 𝟏𝟎 − 𝟐 𝟏𝟎 = 𝟓 𝟏𝟎 = 𝟏 𝟐 6. 𝟏𝟏 𝟏𝟓 − 𝟒 𝟏𝟓 = 𝟕 𝟏𝟓
Starter: Task 1 equivalent lnieqtvaue numerator roumatern denominator Work out the following mathematical anagrams These are the keywords for today’s learning objective lnieqtvaue equivalent numerator roumatern denominator taminoorend multiple timelpul
What is the LEAST COMMON MULTIPLE (LCM) of Starter: Task 2 What is the LEAST COMMON MULTIPLE (LCM) of 3,6,9,12,15,18,21,24,27,30 3 and 4 4,8,12,16,20,24,28,32,36,40 4,8,12,16,20,24,28,32,36,40 4 and 5 5,10,15,20,25,30,35,40,45 5,10,15,20,25,30,35,40,45 5 and 6 6,12,18,24,30,36,42,48,54 2,4,6,8,10,12,14,16,18,20 2 and 4 4,8,12,16,20,24,28,32,36,40 3,6,9,12,15,18,21,24,27,30 3 and 6 6,12,18,24,30,36,42,48,54
Fill the spaces to make equivalent fractions Starter: Task 3 Fill the spaces to make equivalent fractions 1 6 = 18 3 3 4 = 24 18 2 9 = 36 8
What’s today’s learning objective?
Fractions with different denominators Can you work out what has happened to get to these answers? 4 8 3 8 7 8 1 2 3 8 + + = 1 3 7 12 4 12 7 12 11 12 + + = Discuss in Pairs
+ + = 20 15 16 12 9 8 6 4 3 Equivalent Equivalent Multiples of 3 and 4 12 is the LCM =
When the Denominators are Different We must get the denominators the same! How? Make EQUIVALENT FRACTIONS Example: 𝟏 𝟒 + 𝟏 𝟑 What is the LCM of 4 and 3? This is our common denominator! 𝟏 𝟒 + 𝟏 𝟑 12 𝟑+𝟒 𝟏𝟐 = 𝟕 𝟏𝟐 x 3 x 4 x 3 x 4
Example 2: 6 7 − 3 4 24−21 28 = 3 28 What is the LCM of 7 and 4 ? 28 This is our common denominator! 24−21 28 = 3 28 28
YOUR TURN (mini whiteboards) 1) 2) 5 4 - 1 = 2 1 + 3 = 2) 6 3 + 2 20 16 - 5 3 + 2 6 = 5 16 - 5 20 = 11 15 10 12 8 9 6 4 3 2 Multiples of 2 and 3 25 20 16 15 12 10 8 5 4 Multiples of 4 and 5 6 is the LCM 20 is the LCM
MINI-PLENARY 6 1 + 12 5 = 12 7 Q1 TRUE FALSE Stand Up Remain Seated
MINI-PLENARY 8 1 + 3 2 = 24 5 Q2 TRUE FALSE Stand Up Remain Seated
MINI-PLENARY 18 7 - 6 1 = 9 2 Q3 TRUE FALSE Stand Up Remain Seated
CW/HW Worksheet