Расчет дроби 4(5/22) - 2(20/21) = 589/462

The online fraction calculator allows you to perform basic actions with fractions: addition, subtraction, multiplication and division. As well as reduction, reduction to a common denominator and simplification.


To calculate the sum, difference, product or quotient of two fractions and get a detailed solution, enter the numerator and denominator of each fraction and, if available, the integer part. Next, select the necessary operation from the list. If necessary, enter a negative fraction, put a minus sign "-" in the integer part of the fraction.

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4
5
22
-
2
20
21
=
589
462
≈
1.275
Solution:
4
5
22
-
2
20
21
=
4*22+5
22
-
2*21+20
21
=
88+5
22
-
42+20
21
=
93
22
-
62
21
=
93*21
22*21
-
62*22
21*22
=
1953
462
-
1364
462
=
1953-1364
462
=
589
462
≈
1.275
Detailed explanation of the solution:
1.Conversion of mixed fractions to ordinary fractions
4
5
22
-
2
20
21
=
4*22+5
22
-
2*21+20
21
=
88+5
22
-
42+20
21
=
93
22
-
62
21
2.Bringing to a common denominator
93
22
-
62
21
=
93*21
22*21
-
62*22
21*22
=
1953
462
-
1364
462
3.Subtractionfractions with common denominators
1953
462
-
1364
462
=
1953-1364
462
=
589
462
≈
1.275

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