Question

calcule as frações:

A) 8/6 - 5/6= B) 5/2 - 3/2= C) 4/9 + 5/9= D) 7/10 + 2/10= E) 8/9 * 7/3= F) 6/7 * 1/2= G) 2/5 / 3/8= H) 3/5 / 2/7=

Answer 1

Explicação passo-a-passo:

a )

$\frac{8}{6} - \frac{5}{6} = > \frac{8 - 5}{6} = > \frac{3}{6} = > \frac{1}{2}$

b )

$\frac{5}{2} - \frac{3}{2} = > \frac{5 - 3}{2} = > \frac{2}{2} = 1$

c )

$\frac{4}{9} + \frac{5}{9} = > \frac{4 + 5}{9} = > \frac{9}{9} = 1$

d )

$\frac{7}{10} + \frac{2}{10} = > \frac{7 + 2}{10} = > \frac{9}{10}$

e )

$\frac{8}{9} \times \frac{7}{3 } = > \frac{8 \times 7}{9 \times 3} = > \frac{56}{27}$

f )

$\frac{6}{7} \times \frac{1}{2} = > \frac{6 \times 1}{7 \times 2} = > \frac{6}{14} = > \frac{3}{7}$

g )

$\frac{2}{5} \div \frac{3}{8} = > \frac{2}{5} \times \frac{8}{3} = > \frac{16}{15}$

h )

$\frac{3}{5} \div \frac{2}{7} = > \frac{3}{5} \times \frac{7}{2} = > \frac{21}{10}$

Espero ter ajudado !!!