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Calculation of Fraction – Is It As Easy As Whole Numbers?

Fractions:

A Fraction, simply defined, is a part or a portion of a whole. For example, a slice of pie is a part of the whole pie.

Representation:

Fractions consist of 2 numbers that are separated by a Dash “___” or a Slash “/”.

The number above the dash is called “Numerator.”

The number below the dash is called “Denominator.”

Consider that a pie is divided into 5 parts, then each piece shows 1/5 portion of the whole pie.

Subtraction and Addition

Case 1
If the denominator of fractions is same, simply add/subtract the numerators and write denominator as it is.    
Case 2
If the denominator of the fractions is different, make the denominators same by multiplying and dividing a suitable number. Once denominator becomes same, add or subtract the numerator and write denominator as it is.

Multiplication

For multiplication, follow the following steps:

  1. Multiply numerator with numerator
  2. Multiply denominator with denominator
  3. Write new values as numerators and denominators.

Division

For division follow following steps:

  1. Take reciprocal (write numerator as denominator and denominator as numerator) of one of the fractions in division equation, For example: Reciprocal of 1/5 is 5/1
  2. After taking reciprocal convert division sign into multiplication and follow multiplication rules.

References:

  1. https://psychometric-success.com/aptitude-tests/fractions

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