=5/8+3/2-3=5/8+12/8-3=2 1/8-2 8/8=-7/8
=(-4+5)/15+2=1/15+2=2 1/15
=7/2-9/4+1=14/4-9/4+1=2 1/4
=(3+1,5)/(3-1,5)-10,7=4,5/1,5-10,7=3-10,7=-7,7
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2.) -4+5/15 +2=1/15+2=31/15= 2 1/15
3.) 7/2-9/4+1=14-9+4/4=9/4=2 1/4
4.) 3+1.5/3-1.5 -10.7=4.5/1.5 -10.7=(9/2)/(3/2)-10.7=9/3-10.7=3-10.7=-7.7
=5/8+3/2-3=5/8+12/8-3=2 1/8-2 8/8=-7/8
=(-4+5)/15+2=1/15+2=2 1/15
=7/2-9/4+1=14/4-9/4+1=2 1/4
=(3+1,5)/(3-1,5)-10,7=4,5/1,5-10,7=3-10,7=-7,7