pomuszcie miii / to kreska ułamkowa -to odejmowanie
a) a+4/5=1 i 1/4
b) 1 i 4/7 +b=3 i 1/3
c) c-5/6=7/9
d) d-1 i 1/4=2 i 2/3
e) 1/2-p=3/7
f) 1 i 1/5-u=5/6
proszeeee pomuszciee
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a) a+4/5=1 1/4
a=1 1/4 - 4/5 = 5/4 - 4/5 =25/20 - 16/20 = 9/20
b) b=3 1/3 - 1 4/7 = 10/3 - 11/7 = 70/21 - 33/21 = 37/21 = 1 i 16/21
c) c=7/9 + 5/6 = 14/18 + 15/18 = 29/18 = 1 i 11/18
d) d=2 i 2/3 + 1 i 1/4 = 8/3 + 5/4 = 32/12 + 15/12 = 47/12 = 3 i 11/12
e) p=1/2 - 3/7 = 7/14 - 6/14 = 1/14
f) u=1 i 1/5 - 5/6 = 6/5 - 5/6 = 36/30 - 25/30 = 11/30
a =6/5
d=3 3/4
e=4/7
f=7 6/5
Jeżeli pomogłam to licze na naj!!