Zadanie 2
a) 1/4 + 0,7 = 0,95
b) 1,9 - 1,5 = 2/5
c) 0,7 + 6/25 = 0,94
Zadanie 3
a)
[tex] \frac{3}{5} + 0.83 = 0.6 + 0.83 = 1.43[/tex]
c)
[tex]2.8 - 1 \frac{3}{4} = 2.8 - 1.75 = 1.05[/tex]
d)
[tex]3 \frac{1}{6} - 1.4 = 3 \frac{1}{6} - 1 \frac{2}{5} = 3 \frac{5}{30} - 1 \frac{12}{30} = 1 \frac{23}{30} [/tex]
e)
[tex] \frac{2}{3} \times 0.03 = \frac{2}{3} - \frac{3}{100} = \frac{1}{50} [/tex]
f)
[tex]2.2 \times 1 \frac{1}{4} = 2.2 \times 1.25 = 2.75[/tex]
g)
[tex]3.2 \div 1 \frac{3}{5} = 3 \frac{1}{5} \times 1 \frac{5}{3} = 3 \frac{1}{3} [/tex]
h)
[tex]1 \frac{2}{7} \div 0.9 = \frac{9}{7} \times \frac{10}{9} = \frac{10}{7} = 1 \frac{3}{7} [/tex]
