13. Fractions 2 Talk About Estimating the Sum of 2 Fractions


Attention All Fraction Detectives Take a piece of paper and fold it in half, then fold it in half again. Open it up and look at the different sections the page is divided into. What fraction is each one of these sections?


Now fold it back the way it was and fold it in half one more time. Open up the piece of paper again. What fraction of the page is each section now?


Has the amount of paper you have had in your hand changed at any stage during all this folding and opening? What conclusions might an ace fraction detective draw?


1. If John ate 1


– 4 of a pizza and Jane ate 3


eaten between them? 1 3


_ + _ = __ 4 4


Trivia Question When you add fractions with equal denominators, you only add the


Is the answer: a) numerators


2. If Helen ate 3 b) denominators fraction of the bar did they eat?


Shade in Lisa’s fraction to fi nd out how much they ate.


Strand: Number


Curriculum Objectives: Add and subtract simple fractions.


95 3 3


_ + _ = __ 8 8


c) alligators?


– 8 of a bar of chocolate and her friend Lisa ate 3


– 8 of the bar, what


– 4 of the pizza, how much pizza have they


.


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