脱式,不要简便
0.75X9/11÷3/4
=3/4*9/11*4/3
=3/4*4/3*9/11
=1*9/11
=9/11
1+2/3÷4/5-1/6
=1+5/6-1/6
=1又5/6-1/6
=1又2/3
5/8X4-2/5÷4/15
=5/2-3/2
=1
脱式,不要简便
0.75X9/11÷3/4
=3/4*9/11*4/3
=3/4*4/3*9/11
=1*9/11
=9/11
1+2/3÷4/5-1/6
=1+5/6-1/6
=1又5/6-1/6
=1又2/3
5/8X4-2/5÷4/15
=5/2-3/2
=1