mockingbird520 1)14/17+2/17=16/17-3/17=13/17-8/17=5/17+6/17=11/17-9/17=2/17
2)1/8+5/8=6/8+0,25=0,875-0,4=0,475+0,2=0,675+0,6=1,275
3)2/9+1/9=0,22+0,11=0,33+0,66=0,99-0,28=0,71-0,57=0,14+0,85=0,99
4)3/10-1/10=0,2+0,8=1-0,16=0,84-0,5=0,34+0,66=1
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