a)
[tex] \frac{4}{5} - \frac{3}{25} = \frac{20}{25} - \frac{3}{25} = \frac{17}{25} [/tex]
b)
[tex] \frac{6}{7} - \frac{2}{3} = \frac{18}{21} - \frac{14}{21} = \frac{4}{21} [/tex]
c)
[tex]1 \frac{3}{10} - \frac{1}{6} = 1 \frac{9}{30} - \frac{5}{30} = 1 \frac{4}{10} = 1 \frac{2}{5} [/tex]
d)
[tex]3 \frac{11}{12} - 1 \frac{3}{8} = 3 \frac{22}{24} - 1 \frac{9}{24} = 2 \frac{13}{24} [/tex]
Myślę że pomogłem ;)
Szczegółowe wyjaśnienie:
a. 4/5 - 3/25 = 20/25 - 3/25 = 17/25
b. 6/7 - 2/3 = 18/21 - 14/21 = 4/21
c. 1 3/10 = 13/10, 13/10 - 1/6 = 78/60 - 10/60 = 68/60 = 1 2/15
d. 3 11/12 = 47/12, 1 3/8 = 11/8 , 47/12 - 11/8 =
94/24 - 33/24 = 61/24 = 2 13/24
