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3/5*4/9+1 1/3=
1 1/4*2/5-1/3=
3/8:1/2+3 1/4=
5/6:1/3+1 1/8=
1 2/5:5/7+3/8=
2 1/3:1 5/9-5/6=
3/5*4/9+1 1/3=
1 1/4*2/5-1/3=
3/8:1/2+3 1/4=
5/6:1/3+1 1/8=
1 2/5:5/7+3/8=
2 1/3:1 5/9-5/6=
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1)3/5*4/9+1 1/3=4/15+4/3=4/15+20/15=24/15=1 9/15=1 3/5////2)1 1/4*2/5-1/3=1/2-1/3=3/6-2/6=1/6; ///3)3/8:1/2+3 1/4=3/4+13/4=16/4=4; ////4)5/6:1/3+1 1/8=5/2+9/8=20/8+9/8=29/8=3 5/8; ///5)1 2/5:5/7+3/8=7/5*7/5+3/8=49/10+3/8=196/40+15/40=211/40=5 11/40; ////6)2 1/3:1 5/9-5/6=7/3*9/14-5/6=3/2-5/6=9/6-5/6=4/6=2/3