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6,5 : (2i1/4*6 - 0,5) = 6,5: ( 2,25 * 6 - 0,5) = 6,5 : (13,5-0,5)=6,5:13 = 0,5
0,5 = 1/2
(5-1 i1/2) : (2i3/8- 1,75) = (5 -1,5) : (2,375-1,75)= 3,5:0,625= 5,6
3i3/4 * 0,8+ 2i2/3* 0,3 = 15/4*8/10 + 8/3*3/10= 3/1*2/2 + 4/1*1/5 =
= 6/2 +4/5 = 3 + 4/5 = 3 i 4/5 = 3,8
5/7 * 4,2( 1i1/4 - 0,5 ) = 5/7 * 42/10 ( 5/4 - 1/2) = 1/1*6/2(5/4-2/4) =
= 6/2 * 3/4 = 18/8 = 2 i2/8 = 2 i 1/4
4 i 1/2 - 2,4 : 2 i2/3+ 1,4 = 4 i1/2 - 24/10: 8/3 + 1,4 = 4 i1/2-24/10*3/8+1,4
= 4 i 1/2 - 3/10 * 3/1 + 1,4 = 4i1/2- 9/10+1,4= 4,5- 0,9 + 1,4 = 5,9 - 0,9 = 5
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6,5 : (2i1/4*6 - 0,5) = 6,5: ( 2,25 * 6 - 0,5) = 6,5 : (13,5-0,5)=6,5:13 = 0,5
0,5 = 1/2
(5-1 i1/2) : (2i3/8- 1,75) = (5 -1,5) : (2,375-1,75)= 3,5:0,625= 5,6
3i3/4 * 0,8+ 2i2/3* 0,3 = 15/4*8/10 + 8/3*3/10= 3/1*2/2 + 4/1*1/5 =
= 6/2 +4/5 = 3 + 4/5 = 3 i 4/5 = 3,8
5/7 * 4,2( 1i1/4 - 0,5 ) = 5/7 * 42/10 ( 5/4 - 1/2) = 1/1*6/2(5/4-2/4) =
= 6/2 * 3/4 = 18/8 = 2 i2/8 = 2 i 1/4
4 i 1/2 - 2,4 : 2 i2/3+ 1,4 = 4 i1/2 - 24/10: 8/3 + 1,4 = 4 i1/2-24/10*3/8+1,4
= 4 i 1/2 - 3/10 * 3/1 + 1,4 = 4i1/2- 9/10+1,4= 4,5- 0,9 + 1,4 = 5,9 - 0,9 = 5