Question

Alguém sabe porfavor? preciso amanhã! ❤​

Answer 1

c)

$1 \frac{1}{2} + \frac{1}{2} = \frac{1 \times 2 + 1}{2} + \frac{1}{2} \\ = \frac{3}{2} + \frac{1}{2} = \frac{4}{2} \\ = 2$

d)

$\frac{5}{100} + \frac{40}{100} = \frac{45 \div 5}{100 \div 5} = \frac{9}{20}$

e)

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

$\frac{1}{2} - \frac{1}{2} = 0$