Class 4 Exam > Class 4 Questions > 3 times of 25/81 = ______.a)75/91b)25/27c)75/...
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3 times of 25/81 = ______.
- a)75/91
- b)25/27
- c)75/90
- d)75/71
Correct answer is option 'B'. Can you explain this answer?
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3 times of 25/81 = ______.a)75/91b)25/27c)75/90d)75/71Correct answer i...
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3 times of 25/81 = ______.a)75/91b)25/27c)75/90d)75/71Correct answer i...
To find the value of 3 times of 25/81, we can simply multiply 3 and 25/81 together.
Multiplying Whole Numbers and Fractions:
To multiply a whole number and a fraction, we multiply the whole number by the numerator of the fraction and write the result over the denominator.
Steps to Multiply 3 and 25/81:
Step 1: Multiply the whole number 3 by the numerator 25.
3 × 25 = 75
Step 2: Write the product (75) over the denominator 81.
75/81
Simplifying the Fraction:
To simplify the fraction, we can find the greatest common divisor (GCD) of the numerator and denominator and divide both the numerator and denominator by the GCD.
Step 3: Find the GCD of 75 and 81.
The factors of 75 are 1, 3, 5, 15, 25, and 75.
The factors of 81 are 1, 3, 9, 27, and 81.
The GCD of 75 and 81 is 3.
Step 4: Divide both the numerator and denominator by the GCD (3).
75 ÷ 3 = 25
81 ÷ 3 = 27
The simplified fraction is 25/27.
Therefore, 3 times of 25/81 is equal to 25/27.
Correct answer: option b) 25/27
Multiplying Whole Numbers and Fractions:
To multiply a whole number and a fraction, we multiply the whole number by the numerator of the fraction and write the result over the denominator.
Steps to Multiply 3 and 25/81:
Step 1: Multiply the whole number 3 by the numerator 25.
3 × 25 = 75
Step 2: Write the product (75) over the denominator 81.
75/81
Simplifying the Fraction:
To simplify the fraction, we can find the greatest common divisor (GCD) of the numerator and denominator and divide both the numerator and denominator by the GCD.
Step 3: Find the GCD of 75 and 81.
The factors of 75 are 1, 3, 5, 15, 25, and 75.
The factors of 81 are 1, 3, 9, 27, and 81.
The GCD of 75 and 81 is 3.
Step 4: Divide both the numerator and denominator by the GCD (3).
75 ÷ 3 = 25
81 ÷ 3 = 27
The simplified fraction is 25/27.
Therefore, 3 times of 25/81 is equal to 25/27.
Correct answer: option b) 25/27
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3 times of 25/81 = ______.a)75/91b)25/27c)75/90d)75/71Correct answer i...
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