Question

efetue e simplifique sempre que possível:

a)1/4+1/6=?
b)3/5-2/25=?
d)4/5÷2/3

Answer 1

$a) \frac{1}{4} + \frac{1}{6} = > \frac{3 + 2}{12} = \frac{5}{12}$

$b) \frac{3}{5} - \frac{2}{25} = > \frac{15 - 2}{25} = \frac{13}{25}$

$c) \frac{4}{5} \div \frac{2}{3} = > \frac{4}{5} \times \frac{3}{2} = > \frac{2}{5} \times 3 = \frac{6}{5}$