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To solve this problem, follow these steps:
Let's begin with Step 1:
Convert to an improper fraction:
Convert to an improper fraction:
Step 2: Find a common denominator for and .
The least common multiple of 3 and 15 is 15, so we'll use 15 as the common denominator.
Step 3: Convert to have the denominator of 15:
Now, perform the subtraction:
Step 4: Simplify .
The greatest common divisor of 6 and 15 is 3, so divide the numerator and denominator by 3:
Thus, the final answer is .
\( 2\frac{2}{5}+2\frac{2}{5}= \)
Because is bigger than ! If you subtract whole numbers first, you'll need to borrow from the whole number, making it much more complicated. Converting to improper fractions avoids this confusion.
Use the formula: improper fraction = (whole × denominator + numerator) / denominator. For :
Look for the Least Common Multiple (LCM). Since 15 is already a multiple of 3, the LCM of 3 and 15 is just 15. When one denominator divides evenly into the other, use the larger one!
Yes, always simplify! and are equal, but is in lowest terms. Divide both numerator and denominator by their greatest common factor.
That's possible when subtracting mixed numbers! If the second number is larger than the first, your answer will be negative. Just follow the same steps and include the negative sign in your final answer.
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