Solve: (2/3 × 1/4) + (1/6 × 5/2) Fraction Expression

23×14+16×52= \frac{2}{3}\times\frac{1}{4}+\frac{1}{6}\times\frac{5}{2}=

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Step-by-step video solution

Watch the teacher solve the problem with clear explanations
00:08 First, remember that multiplication and division always come before addition and subtraction.
00:14 When multiplying fractions, simply multiply the top numbers together, then the bottom numbers. Great job!
00:22 Now, let's try some multiplication exercises. Ready? Let's go!
00:29 If the bottom numbers are the same, add the top numbers together. Easy, right?
00:35 Let's solve this addition problem together.
00:38 And that's how you solve it! Way to go!

Step-by-step written solution

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1

Understand the problem

23×14+16×52= \frac{2}{3}\times\frac{1}{4}+\frac{1}{6}\times\frac{5}{2}=

2

Step-by-step solution

To solve the expression 23×14+16×52 \frac{2}{3}\times\frac{1}{4}+\frac{1}{6}\times\frac{5}{2} , we need to follow the order of operations (also known as BODMAS/BIDMAS: Brackets, Orders (i.e., powers and roots, etc.), Division and Multiplication, Addition and Subtraction). Multiplication and division should be handled from left to right before addition or subtraction.

First, we perform the multiplication:

  • 23×14 \frac{2}{3} \times \frac{1}{4} : To multiply fractions, multiply the numerators and multiply the denominators.
    Numerator: 2×1=2 2 \times 1 = 2
    Denominator: 3×4=12 3 \times 4 = 12
    Thus, 23×14=212 \frac{2}{3} \times \frac{1}{4} = \frac{2}{12} .
  • Simplify 212 \frac{2}{12} : The greatest common divisor (GCD) of 2 and 12 is 2.
    So, divide both the numerator and the denominator by 2:
    2÷212÷2=16 \frac{2\div2}{12\div2} = \frac{1}{6} .
  • 16×52 \frac{1}{6} \times \frac{5}{2} : Again, multiply the numerators and multiply the denominators.
    Numerator: 1×5=5 1 \times 5 = 5
    Denominator: 6×2=12 6 \times 2 = 12
    Thus, 16×52=512 \frac{1}{6} \times \frac{5}{2} = \frac{5}{12} .

Now, we have the expression 16+512 \frac{1}{6} + \frac{5}{12} .

To add these fractions, find a common denominator. The least common multiple of 6 and 12 is 12.

  • Convert 16 \frac{1}{6} to have a denominator of 12.
    Multiply the numerator and denominator by 2:
    1×26×2=212 \frac{1\times2}{6\times2} = \frac{2}{12} .
  • Now, add 212+512 \frac{2}{12} + \frac{5}{12} .
    Add the numerators and keep the common denominator:
    2+512=712 \frac{2+5}{12} = \frac{7}{12} .

Therefore, the answer is 712 \frac{7}{12} , which matches the given correct answer.

3

Final Answer

712 \frac{7}{12}

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