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Adding and Subtracting Fractions
Name: _________________ Date: ________________ Write down any concepts that confuse you as watch the videos and we will address them together in class.
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Background Knowledge Required
I know how to write the multiples of a number. I know how to reduce a fraction.
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Adding and Subtraction: Like Denominators
Reduce If Necessary π ππ π π π π π π + = Reduce If Necessary π π π π π π π π - =
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Adding Fractions: Unlike Denominators
Reduce If Necessary x 3 π π π π x 4 π ππ π ππ π ππ + = + = x 3 x 4 4, 8, 12, 16β¦ π π π ππ 3, 6, 9, 12β¦
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Subtracting Fractions: Unlike Denominators
Reduce If Necessary x 4 π π π π x 5 ππ ππ ππ ππ π ππ Γ· 2 π ππ - - = = = x 4 x 5 Γ· 2 5, 10, 15, 20 β¦ π π π π 4, 8, 12, 16, 20 β¦
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Subtracting Fractions: Unlike Denominators
Reduce If Necessary x 4 π ππ π π x 15 ππ ππ ππ ππ π ππ Γ· 2 π ππ - - = = = x 4 x 15 Γ· 2 15, 30, 45, 60 β¦ π ππ π π 4, 8, 12, 16, 20, 24, 28, 32, 36, 40, 44, 48, 52, 56, 60 β¦
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