Recap: Adding and Subtracting
Part of the Factors & Fractions section of Coddy's Pre-Algebra journey. Lesson 33 of 58.
Challenge
Work out 2/3 + 1/5 - 1/2.
Try it yourself
2/3 + 1/5 - 1/2
Simplify the expression
All lessons in Factors & Fractions
1Factors and Multiples
What a Factor IsFactor PairsDivisibility RulesMultiplesPrime or CompositeRecap: Factors and Multiples4What a Fraction Is
Parts of a WholeFractions on the LineA Fraction of a NumberImproper FractionsRecap: What a Fraction Is7Multiplying Fractions
Top Times TopCancel FirstWhole Times FractionA Fraction of a FractionRecap: Multiplying Fractions10Fractions in Stories
Part of a GroupWhat Is LeftSharing a FractionScaling a RecipeRecap: Fraction Stories2Prime Factorization
Factor TreesUsing ExponentsOne Tree per NumberBigger NumbersRecap: Prime Factorization5Equivalent Fractions
Same Amount, New NameSimplifying FractionsSimplify in StepsComparing FractionsRecap: Equivalent Fractions3GCF and LCM
Greatest Common FactorGCF from Prime FactorsLeast Common MultipleLCM from Prime FactorsGCF or LCM?Recap: GCF and LCM6Adding and Subtracting
Same DenominatorDifferent DenominatorsSubtracting FractionsThe Least Common DenominatorNegative ResultsRecap: Adding and Subtracting