To calculate the expression, we first simplify the fractions:
0.5 = 1/27/5 = 1.41 4/7 = 11/7
Now we perform the operations:
(1.25 + 1.4 - 3/11) 3= (2.65 - 3/11) 3= (2.65 - 0.2727) 3= 2.3773 3= 7.132
Therefore, the result of the expression is 7.132.
To calculate the expression, we first simplify the fractions:
0.5 = 1/2
7/5 = 1.4
1 4/7 = 11/7
Now we perform the operations:
(1.25 + 1.4 - 3/11) 3
= (2.65 - 3/11) 3
= (2.65 - 0.2727) 3
= 2.3773 3
= 7.132
Therefore, the result of the expression is 7.132.