Question

1+3/4 - 3/2 x 7/9  alguemm pode me ajudar ?

Answer 1

1+3/4 - 3/2 x 7/9 =
1 +3/4 - 21/18= (simplificando 21/18)
1 + 3/4 - 7/6 = --mmc(4,6) = 12
12/12 + 9/12 - 14/12 = 7/12

Answer 2

$1+ \frac{3}{4} - \frac{3}{2} . \frac{7}{9}$

$1+ \frac{3}{4} - \frac{1}{2} . \frac{7}{3}$

$1+ \frac{3}{4} - \frac{7}{6}= \frac{12+9-14}{12} = \frac{7}{12}$