Global Statistics

All countries
94,951,943
Confirmed
Updated on January 17, 2021 3:06 am
All countries
67,554,399
Recovered
Updated on January 17, 2021 3:06 am
All countries
2,030,924
Deaths
Updated on January 17, 2021 3:06 am

Global Statistics

All countries
94,951,943
Confirmed
Updated on January 17, 2021 3:06 am
All countries
67,554,399
Recovered
Updated on January 17, 2021 3:06 am
All countries
2,030,924
Deaths
Updated on January 17, 2021 3:06 am

The Sum of the Numerator and Denominator of a Fraction is 11. If 1 is Added to the Numerator and 2 is Subtracted from the Denominator, It Becomes 2/3. The Fraction is?

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Explanation

  • The sum of the numerator and denominator of a fraction is 11.
  • If 1 is added to the numerator and 2 is subtracted from the denominator, it becomes 2/3. The fraction can be figure out in this way.

Let suppose y shows numerator and z shows denominator in a fraction.

The sum of numerator and denominator is 11.

y + z = 11 ________ (i)

When 1 is added in y and 2 is taken away from z then

(y + 1)/(z – 2) = 2/3 ________ (ii)

By solving both equations simultaneously, we can easily find out the fraction (y/z = 3/8).

To Find

Fraction = ?

Solution

Let suppose

Let suppose y shows numerator and z shows denominator in a fraction.

According to first given condition

y + z = 11 ________ (i)

Multiplying both sides of equation (i) with 2

2y + 2z = 22 ________ (A)

According to second given condition

(y + 1)/(z – 2) = 2/3 ________ (ii)

3(y + 1) = 2(z – 2)

3y + 3 = 2z – 4

3y – 2z = -7 ________ (B)

Adding equation (A) and (B)

2y + 3y + 2z – 2z = 22 – 7

5y = 15

y = 15/5

y = 3

Put y = 3 in equation (i)

3 + z = 11

z = 11 – 3

z = 8

Fraction = 3/8 answer

Conclusion

The sum of the numerator and denominator of a fraction is 11. If 1 is added to the numerator and 2 is subtracted from the denominator, it becomes 2/3. The fraction is 3/8.

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