a)
[tex]2.4 + 1.3 = 3.7[/tex]
b)
[tex]0.18 - 0.1 = 0.08[/tex]
c)
[tex]3 \times 0.12 = 0.36[/tex]
d)
[tex]2.4 \div 0.6 = 0.4[/tex]
e)
[tex] \frac{1}{2} + \frac{1}{2} = \frac{1}{4} [/tex]
f)
[tex] \frac{13}{15} - \frac{10}{15} = \frac{3}{15} = \frac{1}{5} [/tex]
g)
[tex]2 - 1 \frac{1}{7} = \frac{6}{7} [/tex]
h)
[tex] \frac{2}{3} \times \frac{3}{7} = \frac{6}{21} = \frac{2}{7} [/tex]
i)
[tex] \frac{5}{9} \div \frac{2}{3} = \frac{5}{9} \times \frac{3}{2} = \frac{5}{3} \times \frac{1}{2} = \frac{5}{6} [/tex]
j)
[tex]2 \frac{1}{2} \times 3 = \frac{5}{2} \times 3 = \frac{15}{2} = 7 \frac{1}{2} [/tex]
k)
[tex]3 \frac{7}{9} \div 3 = \frac{36}{9} \times \frac{1}{3} = \frac{12}{9} \times \frac{1}{1} = \frac{12}{9} = 1 \frac{3}{9} = 1 \frac{1}{3} [/tex]
Myślę że pomogłem ;)
