Question

1/4x（4.85除以5/18-3.6+6.15乘3 3/5）➕（5.5-1.75✖️（1 2/3➕19/21））

Answer 1

1/4×（4.85÷5/18 -3.6+6.15×3又3/5）+[5.5-1.75×（1又2/3+19/21 ）]

=1/4×（4.85×3.6 -3.6+6.15×3.6）+[5.5-1.75×18/7]
=1/4×3.6（4.85-1+6.15）+[5.5-4.5]
=0.9×10+1
=9+1
=10

Answer 2

1/4x（4.85除以5/18-3.6+6.15乘3 3/5）➕（5.5-1.75✖️（1 2/3➕19/21））
=1/4x(4.85x18 /5-18/5+6.15x18/5)+[5.5+7/4x(5/3+19/21)]
=1/4x18/5x(4.85-1+6.15)+5.5+7/4x18/7
=9/10x10+5.5+4.5
=9+10
=19

Answer 3

1/4x（4.85除以5/18-3.6+6.15乘3 3/5）➕（5.5-1.75✖️（1 2/3➕19/21））
=1/4x（97/20除以5/18-3.6+123/20乘72/20）➕（5.5-35/20✖️（35/21➕19/21））
=1/4x（17.46-3.6+22.14）➕（5.5-4.5）
=1/4x36➕1
=9➕1
=10