Game: FOUR IN A ROW
Aim: To get four symbols in a row
Method:
Choose a square and click on it. Click on the correct answer to the question in the box that appears. If you are right the square is replaced by a tick. Continue until you have won 4 in a row...
7th grade / Number / Fractions / Add fractions / Add fractions using LCD
Fractions with different denominators can be added by changing the fractions so that they share a common denominator.
Given the sum:
1/3 + 1/2
you do this by first finding the Lowest common multiple (LCM) of the denominators of both fractions.
The LCM is the smallest multiple shared by a set of numbers. For instance, some shared multiples of 2 and 3 are 6, 12 and 18, and the LCM is the smallest of those numbers which is 6. The LCM of 2 and 5 is 10 since 10 is the smallest multiple shared by 2 and 5.
Rewrite both fractions to use that LCM by multiplying both the numerator and the denominator by the same number. So, to convert 1/3 to have a denominator of 6, multiply both top and bottom by 2, giving 2/6.
Once you have converted both fractions so that they share the same denominator, you can add the fractions by adding the numerators.
1/3 + 1/2 = 2/6 + 3/6 = 5/6
With our Four in a row math game you will be practicing the topic "Add fractions using LCD" from 7th grade / Number / Fractions / Fractions. The math in this game consists of 16 questions that ask you to add fractions by finding the lowest common denominator (LCD); simplify your answers where possible.
The game will reinforce the math you have chosen to learn by getting you to match the question to the correct answer.
Notes
UXO * Duck shoot * The frog flies * Pong * Cat and mouse * The beetle and the bee
Rock fall * Four in a row * Sow grow * Choose or lose * Mix and match
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