Evaluate -(2)/(5)-x+(-(9)/(10)) where x=(4)/(5).

Question

Evaluate  -(2)/(5)-x+(-(9)/(10)) where  x=(4)/(5).

Bytelearn · Accepted Answer

Substitute x value: Substitute the value of x into the expression. We are given x = (4/5), so we will replace x in the expression with (4/5). Expression: -(2/5) - (4/5) + (-(9/10))Combine fractions: Combine the fractions with a common denominator. The fractions -(2/5) and -(4/5) already have a common denominator of 5, so we can combine them directly. The fraction -(9/10) has a different denominator, so we will need to find a common denominator for all fractions. Common denominator for 5 and 10 is 10.Convert to common denominator: Convert the fractions to have the common denominator. -(2/5) becomes -(4/10) when we multiply both the numerator and the denominator by 2. -(4/5) becomes -(8/10) when we multiply both the numerator and the denominator by 2. Now we have: -(4/10) - (8/10) + (-(9/10))Add fractions: Add the fractions together. Now that all fractions have the same denominator, we can add their numerators. -(4/10) - (8/10) - (9/10) = -(4 + 8 + 9)/10 Calculate the sum of the numerators: 4 + 8 + 9 = 21 So, we have: -(21/10)Simplify expression: Simplify the expression. The negative sign in front of the fraction means we are taking the negative of the entire fraction. Therefore, the simplified expression is: -21/10

Evaluate $-\frac{2}{5}-x+\left(-\frac{9}{10}\right)$ where $x=\frac{4}{5}$ .

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Evaluate $-\frac{2}{5}-x+\left(-\frac{9}{10}\right)$ where $x=\frac{4}{5}$ .