Carly has \( 81 / 2 \) cups of flour for multiple recipes. She uses \( 43 / 4 \) for the cakes. She uses 1.75 for the cookies and \( 8 / 10 \) for apple bars. How much flour does she have left?

Calculate or simplify the expression \( 81/2 - 43/4 - 1.75 - 8/10 \). Calculate the value by following steps: - step0: Calculate: \(\frac{81}{2}-\frac{43}{4}-1.75-\frac{8}{10}\) - step1: Reduce the fraction: \(\frac{81}{2}-\frac{43}{4}-1.75-\frac{4}{5}\) - step2: Rewrite the expression: \(\frac{81}{2}-\frac{43}{4}-\frac{7}{4}-\frac{4}{5}\) - step3: Reduce fractions to a common denominator: \(\frac{81\times 10}{2\times 10}-\frac{43\times 5}{4\times 5}-\frac{7\times 5}{4\times 5}-\frac{4\times 4}{5\times 4}\) - step4: Calculate: \(\frac{810}{20}-\frac{215}{20}-\frac{35}{20}-\frac{16}{20}\) - step5: Transform the expression: \(\frac{810-215-35-16}{20}\) - step6: Subtract the numbers: \(\frac{544}{20}\) - step7: Calculate: \(\frac{136}{5}\) Carly tiene \( 27.2 \) tazas de harina restantes después de usarla para las recetas de galletas, barras de manzana y pasteles.