# Расчет дроби 3/7 + 21/49 = 6/7

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.

• Calculator
• Instruction
• Theory
• History
• Report a problem

3
7
+
21
49
=
6
7
Solution:
3
7
+
21
49
=
3*7
7*7
+
21
49
=
21
49
+
21
49
=
21+21
49
=
42
49
=
6*7
7*7
=
6
7
Detailed explanation of the solution:
1.Bringing to a common denominator
3
7
+
21
49
=
3*7
7*7
+
21
49
=
21
49
+
21
49
21
49
+
21
49
=
21+21
49
=
42
49
3.Reduce the fraction and get the result
42
49
=
6*7
7*7
=
6
7

Similar calculators

Calculators of other categories