For this case we must simplify the following expression:
[tex]\frac {2} {5} - (- \frac {3} {4})[/tex]
By definition of the law of multiplication signs we have to:
[tex]- * - = +[/tex]
So, rewriting the expression we have:
[tex]\frac {2} {5} + \frac {3} {4} =\\\frac {4 * 2 + 5 * 3} {5 * 4} =\\\frac {8 + 15} {20} =\\\frac {23} {20} = 1.15[/tex]
Thus, the answer in decimal form is 1.15.
Answer:
[tex]\frac {23} {20} = 1.15[/tex]
