Adding and Subtracting Fractions

Simple worksheet for adding and subtracting fractions. Differentiated so that column 1 has same denominators, column 2 has one denominator as factor of the other, and column 3 requires LCM.

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Adding and Subtracting Fractions

Simple worksheet for adding and subtracting fractions. Differentiated so that column 1 has same denominators, column 2 has one denominator as factor of the other, and column 3 requires LCM.

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I wonder if I am the only person in the world who thinks that adding fractions with different denominators is an activity best carried out by calculator, on those rare occasions when one needs to do it at all. Someone should tell the syllabus authors. the argument that 4 years later they will understand rational functions more easily ain’t good enough.

I think manipulation of fractions is incredibly difficult conceptually to understand, yet we teach it to 7 year olds. Why???

A very good question ! At least they don’t do the following in the States until grade 4, which is aroud second year juniors:

“developing an understanding of fraction equivalence, addition and subtraction of fractions with like denominators, and multiplication of fractions by whole numbers;”

I have been asked to help with a book on fractions for adults by a US maths advisor. It has been quite interesting so far, we agree on most things. I have loads of posts on fractions, have you seen them ?

I haven’t. Please link me up 🙂

Just click on my blue name at the top of the comment

and enter fractions in the search box on the site page when you get there