Question

oblicz :

A) {4/5} *{15/21}*{7/12}=

B) 3{7/9}:5{2/3}*1{1/2}=

C) 4{2/7}*1{2/3}:1{5/7}=

D) (2{2/3}:1{7/9})*(2{1/2}:{5/6})=

np. {1/2} = UŁAMEK!

proszę o odpiowiedzi

Answer 1

a){4/5} *{15/21}*{7/12}= 12/21*7/12=1/3

b)3{7/9}:5{2/3}*1{1/2}=104/9:17/3*3/2= 104/51*3/2=51/17=3
c)4{2/7}*1{2/3}:1{5/7}= 30/7*5/3:12/7=5/7:12/7=5/7*7/12=5/12
d)(2{2/3}:1{7/9})*(2{1/2}:{5/6})=8/3:16/9*5/2*5/6= 3/2*5/2*5/6= 15/4*5/6=25/8

Answer 2

a)420/1260=42/126

b)28/9*3/17*3/2=252/306

c)30/7*5/3*7/12=1050/252=4(42/252)