a 4 1/2+3*2 3/4= b 17/40-1/5:1 3/5= c 1 1/2:3/5 -1 1/3*3/10= d 32-2 * (7 2/3-2 1/2:10):6 =
a)4 1/2+3*2 3/4=4 1/2+3*11/4=4 2/4+33/4=4 2/4+8 1/4=12 3/4
b)17/40-1/5:1 3/5=17/40-1/5*5/8=17/40-5/40=12/40=3/10
c)1 1/2:3/5-1 1/3*3/10=3/2*5/3-4/3*3/10=5/2-2/5=2 5/10-4/10=2 1/10
d)32-2*(7 2/3-2 1/2:10):6=32-2*(7 2/3-5/2*1/10):6=32-2(7 2/3-1/4):6=
=32-2*(7 8/12-3/12):6=32-2*7 4/12:6=32-2*7 1/3:6=32-2*22/3*1/6=32-11/9=32-
-1 2/9=30 7/9
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a)4 1/2+3*2 3/4=4 1/2+3*11/4=4 2/4+33/4=4 2/4+8 1/4=12 3/4
b)17/40-1/5:1 3/5=17/40-1/5*5/8=17/40-5/40=12/40=3/10
c)1 1/2:3/5-1 1/3*3/10=3/2*5/3-4/3*3/10=5/2-2/5=2 5/10-4/10=2 1/10
d)32-2*(7 2/3-2 1/2:10):6=32-2*(7 2/3-5/2*1/10):6=32-2(7 2/3-1/4):6=
=32-2*(7 8/12-3/12):6=32-2*7 4/12:6=32-2*7 1/3:6=32-2*22/3*1/6=32-11/9=32-
-1 2/9=30 7/9