Расчет дроби 3(7/8) - 21(49/76) = -2701/152

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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3
7
8
-
21
49
76
=
-2701
152
Solution:
3
7
8
-
21
49
76
=
3*8+7
8
-
21*76+49
76
=
24+7
8
-
1596+49
76
=
31
8
-
1645
76
=
31*19
8*19
-
1645*2
76*2
=
589
152
-
3290
152
=
589-3290
152
=
-2701
152
Detailed explanation of the solution:
1.Conversion of mixed fractions to ordinary fractions
3
7
8
-
21
49
76
=
3*8+7
8
-
21*76+49
76
=
24+7
8
-
1596+49
76
=
31
8
-
1645
76
2.Bringing to a common denominator
31
8
-
1645
76
=
31*19
8*19
-
1645*2
76*2
=
589
152
-
3290
152
3.Subtractionfractions with common denominators
589
152
-
3290
152
=
589-3290
152
=
-2701
152

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