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Tag: common denominator

Adding (and Subtracting) Fractions Tips

The “standard” way to add (or subtract) fractions is to put them over a common denominator first. So, the fraction problem

3 over 10plus 1 over 15
is

9 over 30plus 2 over 30

Continue reading Adding (and Subtracting) Fractions Tips

Posted on January 22, 2013February 16, 2024Categories EducationTags addition, cofactor, common denominator, fractions, multiplication, subtraction3 Comments on Adding (and Subtracting) Fractions Tips

Another Way To Teach Fraction Division

The classic way to teach fraction division is like this. To work out, say,

we ‘turn the second fraction upside-down’, to get

and then the division question becomes a multiplication question.

Continue reading Another Way To Teach Fraction Division

Posted on January 16, 2011February 16, 2024Categories EducationTags arithmetic, common denominator, division, fraction, methodology
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