The trick to adding fractions is three simple steps. First, make sure the bottom numbers (the denominators) are the same. Secondly, add the top numbers (the numerators), put the answer over the denominator. Finally, simplify the fraction if need be.
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adding fractions is like adding a WHOLE lot of parts of numbers
Ensure that the denominators are the same when adding or subtracting fractions.
When adding or subtracting fractions their denominators must be the same
Mixed numbers can be converted to improper fractions. Then, it is exactly the same as adding proper ones.
Before adding or subtracting two fractions they are converted into like fractions. Explain with examples why this is necessary.