Question

calcule as adições e subtração ​

Answer 1

Explicação passo-a-passo:

$a) \frac{5}{2} + \frac{3}{4} = mmc = 4$

$\frac{10 + 3}{4} = \frac{13}{4}$

$b) \frac{3}{2} + \frac{7}{3} = mmc = 6$

$\frac{9 + 14}{6} = \frac{25}{6}$

$c) \frac{6}{8} + \frac{3}{2} = mmc = 8$

$\frac{6 + 12}{8} = \frac{18}{8} = \frac{9}{4}$

$d) \frac{9}{3} + \frac{1}{4} = mmc = 12$

$\frac{36 + 3}{12} = \frac{39}{12} = \frac{13}{6}$

$e) \frac{12}{6} + \frac{3}{8} = 2 + \frac{3}{8} = mmc = 8$

$\frac{16 + 3}{8} = \frac{19}{8}$

$f) \frac{4}{3} + \frac{1}{6} = mmc = 6$

$\frac{8 + 1}{6} = \frac{9}{6} = \frac{3}{2}$