Question

Resolva os cálculos abaixo 1/2+3/2= B) 4/3+5/3= C)3/25+7/5= d)30/8-10/4=

Answer 1

Resposta:

$a) \: \: \: \frac{1}{2} + \frac{3}{2} = \frac{1 + 3}{2} = \frac{4}{2} = 2 \\ b) \: \: \: \frac{4}{3} + \frac{5}{3} = \frac{4 + 5}{3} = \frac{9}{3} = 3 \\ c ) \: \: \: \frac{3}{25} + \frac{7}{5} = \frac{3 +35}{25} = \frac{38}{25} \\ d) \: \: \: \frac{30}{8} - \frac{10}{4} = \frac{30 - 20}{8} = \frac{ {10}^{ \div 2} }{ {8}^{ \div 2} } = \frac{5}{4}$