1) $$ +\frac{1}{4}-\left(-\frac{2}{5}\right)= $$

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UpStudy AI · Accepted Answer

Calculate or simplify the expression $$ 1/4-(-2/5) $$.
Calculate the value by following steps:
- step0: Calculate:
  $$\frac{1}{4}-\left(\frac{-2}{5}ight)$$
- step1: Rewrite the fraction:
  $$\frac{1}{4}-\left(-\frac{2}{5}ight)$$
- step2: Remove the parentheses:
  $$\frac{1}{4}+\frac{2}{5}$$
- step3: Reduce fractions to a common denominator:
  $$\frac{5}{4	imes 5}+\frac{2	imes 4}{5	imes 4}$$
- step4: Multiply the numbers:
  $$\frac{5}{20}+\frac{2	imes 4}{5	imes 4}$$
- step5: Multiply the numbers:
  $$\frac{5}{20}+\frac{2	imes 4}{20}$$
- step6: Transform the expression:
  $$\frac{5+2	imes 4}{20}$$
- step7: Multiply the numbers:
  $$\frac{5+8}{20}$$
- step8: Add the numbers:
  $$\frac{13}{20}$$
La expresión $$ +\frac{1}{4}-\left(-\frac{2}{5}ight) $$ se simplifica a $$ \frac{13}{20} $$ o 0.65.
La respuesta es $$ \frac{13}{20} $$ o 0.65.

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