Odpowiedź:
a) 8 4/11 + 5 9/11 = 13 13/11 = 14 2/11
b) 8 5/6 + 5 3/8 = 8 20/24 + 5 9/24 = 13 29/24 = 14 5/24
c) 7 2/3- 4 2/5 = 7 10/15 - 4 6/15 = 3 4/15
d) 1 2/7 * 4 1/12 = 9/7 * 49/12 = 3/1 * 7/4 = 21/4 = 5 1/4
e) 4 8/15 : 3 2/5 = 68/15 : 17/5 = 68/15 * 5/17 = 4/3 * 1/1 = 4/3 = 1 1/3
Szczegółowe wyjaśnienie:
Odpowiedź:
a) 8[tex]\frac{4}{11}[/tex]+ 5[tex]\frac{9}{11}[/tex] = (8+5) + ([tex]\frac{4}{11}[/tex]+[tex]\frac{9}{11}[/tex]) = 14[tex]\frac{2}{11}[/tex]
b) 8[tex]\frac{5}{6}[/tex] + 5[tex]\frac{3}{8}[/tex] = 13 + [tex]\frac{29}{24}[/tex] = 14 [tex]\frac{5}{24}[/tex]
c) 7[tex]\frac{2}{3}[/tex] - 4[tex]\frac{2}{5}[/tex] = (7-4) + ([tex]\frac{2}{3}[/tex]-[tex]\frac{2}{5}[/tex]) = 3[tex]\frac{4}{15}[/tex]
d) 1[tex]\frac{2}{7}[/tex] * 4[tex]\frac{1}{12}[/tex] = [tex]\frac{9}{7}[/tex] * [tex]\frac{49}{12}[/tex] = [tex]\frac{21}{4}[/tex] = 5[tex]\frac{1}{4}[/tex]
e) 4[tex]\frac{8}{15}[/tex] / 3[tex]\frac{2}{5}[/tex] = [tex]\frac{68}{15}[/tex] / [tex]\frac{17}{5}[/tex] = [tex]\frac{68}{15}[/tex] * [tex]\frac{5}{17}[/tex] = [tex]\frac{4}{3}[/tex] = 1[tex]\frac{1}{3}[/tex]
Szczegółowe wyjaśnienie: