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Let's first look at the expression in parentheses, we'll write it as a fraction:
Now we get the expression:
Let's address the expression in parentheses and move the 12 to the multiplication expression in the numerator:
Let's reduce between the 12 in the numerator and denominator:
Let's solve the fraction expression in parentheses:
Now we get the expression:
Let's multiply both numerator and denominator by 2 to get whole numbers:
Let's convert the 174 in the numerator to a subtraction expression:
Let's separate the fraction into a subtraction of fractions:
\( 100-(5+55)= \)
The parentheses tell you the exact order! In , you must solve first, then , then multiply by 12.
No! Order of operations (PEMDAS) requires you to handle parentheses first, then multiplication/division. Working left to right will give you a completely wrong answer.
Remember that division by a fraction means multiply by its reciprocal. So .
Mixed numbers like are easier to understand than improper fractions. Since , the mixed form shows the whole and fractional parts clearly.
Break it down step by step!
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