Casio fx-5800P User Manual page 26

A Fraction Calculation Examples
2 1
Example 1: +
3 2
1
Example 2: 3 + 1
4
7
=
6
2 11
= 4 (Fraction Display Format: ab/c)
3 1 2
(
(
2
1
2 3+1
3 1 4+
1 2 3
) 3 1 4
) 1 2 3
E-25
3
+
2
2
+