Oblicz :
d) (2 2/5 +1,2):2 4/7 =
e) 2,8 - 1,8:1 1/5=
f)6,3 +0,7 *1 3/7 =
Oblicz :
d) 4 2/15 - 2 3/20
------------------
2 1/3 : 1 3/17
" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
d) (2 i2/5 +1,2):2 4/7 = (12/5+ 6/5):18/7 =18/5 · 7/18 =7/5=1,4
e) 2,8 - 1,8: 1i 1/5=14/5-9/5 :6/5 =14/5-9/5·5/6 =14/5 -9/6=84/30 -45/30=39/30=13/10=1,3
f)6,3 +0,7 *1 i3/7 =63/10 +7/10· 10/7 =63/10=6,3
Oblicz :
d) 4i 2/15 - 2 i3/20
------------------ =
2 i1/3 : 1i 3/17
62/15 - 43/20
________________=
7/3 : 20/17
248/60 -129/60
_________________=
7/3 · 17/20
119/60
________=
119/60
119/60 · 60/119 =1