Oblicz.proszę o całe rozwiązania . a. -6i2/5 - 4 i 7/10 b. - 8i1/6 + 2i2/3 c. 4i3/4-1i7/8 d. 4i4/9+(.... Question from @patuha1

November 2018 2 47 Report

Oblicz.proszę o całe rozwiązania .
a.
-6i2/5 - 4 i 7/10
b.
- 8i1/6 + 2i2/3
c.
4i3/4-1i7/8
d.
4i4/9+(-1i5/9)
e.
4i4/9 * (-3i3/8)
f.)
(-8i2/3) : ( - 1i4/9)
g) -6i1/2 - 2i2/3 :(-2/9)
h)
-5i5/9 : ( 5i5/6 - 10)

bastek1222

$a) -6\frac{2}{5}-4\frac{7}{10}=-6,4-4,7=-11,1 \\$ $b) -8\frac{1}{6}+2\frac{2}{3}= -\frac{49}{6}+\frac{8}{3}= -\frac{49}{6}+\frac{16}{6}=-\frac{33}{6}=-5\frac{3}{6}= -5\frac{1}{2}\\ c) 4\frac{3}{4}-1\frac{7}{8}=\frac{19}{4}-\frac{15}{8}=\frac{38}{8}-\frac{15}{8}=\frac{23}{8}= 2\frac{7}{8}\\ d) 4\frac{4}{9}+(-1\frac{5}{9})= 4\frac{4}{9}-1\frac{5}{9}=\frac{40}{9}-\frac{14}{9}=\frac{26}{9}=2\frac{8}{9} \\ e) 4\frac{4}{9}*(-3\frac{3}{8})=\frac{40}{9}*\frac{27}{8}=-15$ $f) -8\frac{2}{3}:(-1\frac{4}{9})=-\frac{26}{3}*(-\frac{9}{13})=6\\ g) -6,5-2\frac{2}{3}:(-\frac{2}{9})=-6,5-\frac{8}{3}*(-\frac{9}{2})= -6,5+12=5,5\\ h) -5\frac{5}{9}:(5\frac{5}{6}-10)= -5\frac{5}{9}:(-4\frac{1}{6})= -\frac{50}{9}*(-\frac{6}{25})=\frac{4}{3}=1\frac{1}{3}\\$