Solve the following exercise:
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Solve the following exercise:
To solve this problem, we will follow these steps:
Let's work through these steps:
Step 1: Simplify .
Step 2: Identify the least common denominator (LCD) for and . The denominators are 2 and 6, and the LCM of 2 and 6 is 6.
Step 3: Convert both fractions to have this common denominator.
(already with the correct denominator).
Step 4: Subtract the fractions:
.
Step 5: Simplify the resulting fraction . Find the greatest common divisor (GCD) of 2 and 6, which is 2, and divide both numerator and denominator by 2:
.
Therefore, the solution to the problem is .
Solve the following exercise:
\( \frac{3}{2}-\frac{1}{2}=\text{?} \)
Because fractions represent parts of a whole, not separate numbers! means 2 parts out of 4, while means 1 part out of 6. You need same-sized parts to subtract them.
List the multiples of each denominator until you find the smallest number that appears in both lists. For 4 and 6: multiples of 4 are 4, 8, 12... and multiples of 6 are 6, 12... so LCD = 12. But here we simplified first!
Yes, when possible! Simplifying first made this problem easier because the LCD of 2 and 6 is just 6, not 12.
Always check if your answer can be simplified! Find the Greatest Common Factor (GCF) of the numerator and denominator, then divide both by it. Here, because GCF(2,6) = 2.
Absolutely! Using LCD = 12 gives: . You'll get the same answer, but using the least common denominator keeps numbers smaller and easier to work with.
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