11/1,011 + 402,436/4 = ? Adding Ordinary (Simple, Common) Math Fractions Calculator, Addition Explained Step by Step

The executed operation (with ordinary fractions):
11/1,011 + 402,436/4

Reduce (simplify) fractions to their lowest terms equivalents:

Fraction: 11/1,011 already reduced to the lowest terms.
The numerator and the denominator have no common prime factors.
Their prime factorization:
11 is a prime number;
1,011 = 3 × 337;


Fraction: 402,436/4 = (22 × 100,609)/22 = ((22 × 100,609) ÷ 22 )/(22 ÷ 22 ) = 100,609/1 = 100,609;

Reduce (simplify) fractions to their simplest form, online calculator


Rewrite the equivalent simplified operation:

11/1,011 + 402,436/4 =


11/1,011 + 100,609 =


100,609 + 11/1,011

Rewrite the expression:

As a mixed number (also called a mixed fraction):

Mixed number = a whole number and a proper fraction, of the same sign.


Proper fraction = numerator smaller than denominator.


100,609 + 11/1,011 = 100,609 11/1,011

As a positive improper fraction (numerator >= denominator):

100,609 + 11/1,011 =


(100,609 × 1,011)/1,011 + 11/1,011 =


(100,609 × 1,011 + 11)/1,011 =


101,715,710/1,011

As a decimal number:

100,609 + 11/1,011 =


100,609 + 11 ÷ 1,011 ≈


100,609.010880316518 ≈


100,609.01

As a percentage:

100,609.010880316518 =


100,609.010880316518 × 100/100 =


(100,609.010880316518 × 100)/100 =


10,060,901.08803165183/100


10,060,901.08803165183% ≈


10,060,901.09%

>> Convert fractions to percentages, online calculator


The final answer:
:: written in four ways ::

As a mixed number (also called a mixed fraction):
11/1,011 + 402,436/4 = 100,609 11/1,011

As a positive improper fraction (numerator >= denominator):
11/1,011 + 402,436/4 = 101,715,710/1,011

As a decimal number:
11/1,011 + 402,436/4 ≈ 100,609.01

As a percentage:
11/1,011 + 402,436/4 ≈ 10,060,901.09%

How to subtract the ordinary fractions:
19/1,021 - 402,446/9

Writing numbers: comma ',' used as a thousands separator; point '.' used as a decimal mark; numbers rounded to max. 12 decimals (whenever the case);

Symbols: / fraction bar; ÷ divide; × multiply; + plus; - minus; = equal; ≈ approximation;

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How to: Adding ordinary (simple, common) math fractions. Steps.

There are two cases regarding the denominators when we add ordinary fractions:

  • A. the fractions have like denominators;
  • B. the fractions have unlike denominators.

A. How to add ordinary fractions that have like denominators?

  • Simply add the numerators of the fractions.
  • The denominator of the resulting fraction will be the common denominator of the fractions.
  • Reduce the resulting fraction.

An example of adding ordinary fractions that have like denominators, with explanations

  • 3/18 + 4/18 + 5/18 = (3 + 4 + 5)/18 = 12/18;

  • We simply added the numerators of the fractions: 3 + 4 + 5 = 12;
  • The denominator of the resulting fraction is: 18;
  • The resulting fraction is being reduced: 12/18 = (12 ÷ 6)/(18 ÷ 6) = 2/3.

  • How to reduce (simplify) the common fraction 12/18?

B. To add fractions with different denominators (unlike denominators), build up the fractions to the same denominator. How is it done?

  • 1. Reduce the fractions to the lowest terms (simplifying).

  • 2. Calculate the least common multiple, LCM, of all the fractions' new denominators:

    • LCM is going to be the common denominator of the added fractions.
    • Factor all the new denominators of the reduced fractions (run the prime factorization).
    • The least common multiple, LCM, is the product of all the unique prime factors of the denominators, taken by the largest exponents.
    • Calculate LCM, the least common multiple of numbers.

  • 3. Calculate each fraction's expanding number:

    • The expanding number is the non-zero number that will be used to multiply both the numerator and the denominator of each fraction, in order to build all the fractions up to the same common denominator.
    • Divide the least common multiple, LCM, calculated above, by each fraction's denominator, in order to calculate each fraction's expanding number.
  • 4. Expand each fraction:

    • Multiply each fraction's both numerator and denominator by expanding number.
    • At this point, fractions are built up to the same denominator.
  • 5. Add the fractions:

    • In order to add all the fractions simply add all the fractions' numerators.
    • The end fraction will have as a denominator the least common multiple, LCM, calculated above.
  • 6. Reduce the end fraction to the lowest terms, if needed.

... Read the rest of this article, here: How to add ordinary (common) fractions?

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