(dwa zadania w załączniku) Oblicz według wzoru ułamki zwykłe

Zad 7
a)
[tex]4 \frac{1}{8} - 2 \frac{1}{8} = 2 \frac{1}{8} [/tex]
b)
[tex]1 \frac{3}{6} - 1 \frac{2}{6} = \frac{1}{6} [/tex]
c)
[tex]5 \frac{10}{15} - 3 \frac{6}{15} = 2 \frac{4}{15} [/tex]
d)
[tex]3 \frac{4}{12} - 1 \frac{3}{12} = 2 \frac{1}{12} [/tex]
e)
[tex]2 \frac{5}{20} - 1 \frac{4}{20} = 1 \frac{1}{20} [/tex]
f)
[tex]6 \frac{18}{54} - 4 \frac{12}{54} = 2 \frac{6}{54} [/tex]
Zad 8
a)
[tex]2 \frac{2}{3} - \frac{1}{2} = \frac{8}{3} - \frac{1}{2} = \frac{16}{6} - \frac{3}{6} = \frac{13}{6} = 2 \frac{1}{6} [/tex]
b)
[tex]2 \frac{2}{3} + \frac{1}{2} = \frac{8}{ 3} + \frac{1}{2} = \frac{16}{6} + \frac{3}{6} = \frac{19}{6} = 3 \frac{1}{6} [/tex]