Solve the Fraction Addition: 3/4 + 2/20 Step-by-Step

34+220= \frac{3}{4}+\frac{2}{20}=

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Step-by-step video solution

Watch the teacher solve the problem with clear explanations
00:00 Solve
00:03 We want to get to the smallest common denominator
00:06 Therefore multiply by 5, to get the common denominator 20
00:09 Remember to multiply both numerator and denominator
00:16 Let's calculate the multiplications
00:22 Let's add under the common denominator
00:30 Let's calculate the numerator
00:34 And this is the solution to the question

Step-by-step written solution

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1

Understand the problem

34+220= \frac{3}{4}+\frac{2}{20}=

2

Step-by-step solution

To solve 34+220 \frac{3}{4} + \frac{2}{20} , let's follow these steps:

  • Step 1: Convert 34 \frac{3}{4} to a fraction with the denominator 20 20 .
    Multiply both the numerator and denominator of 34 \frac{3}{4} by 5 5 , as 20÷4=5 20 \div 4 = 5 :
    We have: 3×54×5=1520 \frac{3 \times 5}{4 \times 5} = \frac{15}{20}
  • Step 2: The fraction 220 \frac{2}{20} is already in the correct form with a denominator of 20 20 .
  • Step 3: Add the fractions 1520 \frac{15}{20} and 220 \frac{2}{20} :
    Since they have the same denominator, we combine the numerators directly: 1520+220=15+220=1720 \frac{15}{20} + \frac{2}{20} = \frac{15 + 2}{20} = \frac{17}{20}

Therefore, the sum of the fractions is 1720 \frac{17}{20} .

3

Final Answer

1720 \frac{17}{20}

Practice Quiz

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\( \)\( \frac{4}{5}+\frac{1}{5}= \)

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