https://binary2hex.com/fraction-calculator.html?id=114

Расчет дроби 7(3/1) + 8(21/49) = 129/7

7
3
1
+
8
21
49
=
129
7
≈
18.429
Solution:
7
3
1
+
8
21
49
=
7*1+3
1
+
8*49+21
49
=
7+3
1
+
392+21
49
=
10
1
+
413
49
=
10*49
1*49
+
413
49
=
490
49
+
413
49
=
490+413
49
=
903
49
=
129*7
7*7
=
129
7
≈
18.429
Detailed explanation of the solution:
1.Conversion of mixed fractions to ordinary fractions
7
3
1
+
8
21
49
=
7*1+3
1
+
8*49+21
49
=
7+3
1
+
392+21
49
=
10
1
+
413
49
2.Bringing to a common denominator
10
1
+
413
49
=
10*49
1*49
+
413
49
=
490
49
+
413
49
3.Additionfractions with common denominators
490
49
+
413
49
=
490+413
49
=
903
49
4.Reduce the fraction and get the result
903
49
=
129*7
7*7
=
129
7
≈
18.429