Solve the Expression: 87:(12×(35:(2×12))) Using Order of Operations

Question

87:(12×(35:(2×12)))= 87:(12\times(35:(2\times12)))=

Video Solution

Solution Steps

00:00 We'll use the distributive property of multiplication to convert the exercise into a fraction
00:11 We'll put the multiplication inside the fraction to simplify
00:19 This way we can perform reduction easily
00:22 Let's rewrite the exercise with the fraction result
00:27 And convert back to fraction form for convenience
00:41 Since 174 is not divisible by 5, let's write it differently
00:47 Let's break it into two different fractions
00:53 Now we can reduce the first fraction
00:58 This way, it's easier to reach the solution
01:02 And that's the solution!

Step-by-Step Solution

Let's first look at the expression in parentheses, we'll write it as a fraction:

(12×(35:(2×12)))= (12\times(35:(2\times12)))=

12×352×12 12\times\frac{35}{2\times12}

Now we get the expression:

87:(12×352×12) 87:(12\times\frac{35}{2\times12})

Let's address the expression in parentheses and move the 12 to the multiplication expression in the numerator:

87:(12×352×12) 87:(\frac{12\times35}{2\times12})

Let's reduce between the 12 in the numerator and denominator:

87:(352) 87:(\frac{35}{2})

Let's solve the fraction expression in parentheses:

35:2=17.5 35:2=17.5

Now we get the expression:

87:17.5=8717.5 87:17.5=\frac{87}{17.5}

Let's multiply both numerator and denominator by 2 to get whole numbers:

87×217.5×2=17435 \frac{87\times2}{17.5\times2}=\frac{174}{35}

Let's convert the 174 in the numerator to a subtraction expression:

175135= \frac{175-1}{35}=

Let's separate the fraction into a subtraction of fractions:

1755135=5135=43435 \frac{175}{5}-\frac{1}{35}=5-\frac{1}{35}=4\frac{34}{35}

Answer

43435 4\frac{34}{35}