Question

calcule as subtrações com denominadores diferentes 9/2-5/4 2/3-1/2 3/4-1/2 5/7-1/3​

Answer 1

Explicação passo-a-passo:

A)

$\frac{9}{2} - \frac{5}{4} = \frac{18 - 5}{4} = \frac{13}{4}$

B)

$\frac{2}{3} - \frac{1}{2} = \frac{4 - 3}{6} = \frac{1}{6}$

C)

$\frac{3}{4} - \frac{1}{2} = \frac{3 - 2}{4} = \frac{1}{4}$

D)

$\frac{5}{7} - \frac{1}{3} = \frac{15 - 7}{21} = \frac{8}{21}$