Question

pomożecie proszę (11 1/3 - 3 1/2) + (7 2/3 - 1 3/4)=
11 - 2 3/4 - (7 3/8 - 5 4/5)=
10 1/4 - 2 1/3 + 4 2/3=
(23 4/5 + 9 1/2) - (7- 5/8) = To są ulamki

Answer 1

(11 1/3-3 1/2)+(7 2/3-1 3/4)=(11 2/6-3 3/6)+(7 8/12-1 9/12)=
=(10 6/6+2/6-3 3/6)+(6 12/12-8/12-1 9/12)=7 5/6+5 11/12=7 5/6+5 11/12=
=7 10/12+5 11/12=12 21/12=13 9/12=13 3/4

11-2 3/4-(7 3/8-5 4/5)=10 4/4-2 3/4-(7 15/40-5 32/40)=
=8 1/4-(6 40/40+15/40-5 32/40)=1 23/40

10 1/4-2 1/3+4 2/3=10 3/12-2 4/12+4 8/12=12 7/12

(23 4/5+9 1/2)-(7-5/8)=(23 8/10+9 5/10)-6 8/8-5/8=32 13/10-6 3/8=
=26 52/40-15/40=26 37/40