Odpowiedź :
a) 5/7 * 2 1/3 * 6/5-1,4 5/7*7/3*6/5-7/5 2-1 2/5 3/5
___________________ = ________________ = ________ = ___ =
1 - 7/8*1 3/5 * 3/14 1 - 7/8*8/5*3/14 1 - 3/10 7/10
3/5 : 7/10 = 3/5 * 10/7 = 6/7
b)(4 3/4)*(-11/19) 19/4*(-11/19) -11/4
_______________= ____________ = _____ = -11/4 = -2 3/4
1 2/5 : (1,4) 7/5 *10/14 1
___________________ = ________________ = ________ = ___ =
1 - 7/8*1 3/5 * 3/14 1 - 7/8*8/5*3/14 1 - 3/10 7/10
3/5 : 7/10 = 3/5 * 10/7 = 6/7
b)(4 3/4)*(-11/19) 19/4*(-11/19) -11/4
_______________= ____________ = _____ = -11/4 = -2 3/4
1 2/5 : (1,4) 7/5 *10/14 1
a/5/7*5/3*6/5-1,4kreska ulamkowa1-7/b*8/5*3/14 =5/3*6/5-1,4kr.ulam1-7/5*3/14=2-1,4kr.ul.10/10*3/10=o,6;7/10=6/7 b/w liczniku19/4*11/19pod kr.uł 7/5;14/10=alicz.-11/4pod kres.7/5;14/10=w licz.11/4pod kres.7/5*10/14=-11/4;1=-11/4*1=-23/4