Now you can find the common denominator of fractions, we can do sums with them! Let's try 1/2 + 1/4. First get them common denominators: 2/4 + 1/4 Then add their numerators: 2 + 1 = 3. Full calculation: 1/2 + 1/4 = 2/4 + 1/4 = 3/4 Subtracting fractions can be done in the same way.
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