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(9/20)/6+(1/6)*(1/20)
=(9/20)*(1/6)+(1/6)*(1/20)
=(1/6)*(9/20+1/20)
=(1/6)*(10/20)
=1/12
4-[3.75*(1.2-1/3)+3/4]
=4-[(15/4)*(1.2-1/3)+3/4]
=4-(3/4)*(5*1.2-5*(1/3)+1)
=4-(3/4)*(7-5/3)
=0
(5/6)*0.25+(1/4)*(1/6)
=(1/4)*(5/6+1/6)
=1/4
x-0.2x=5.6
0.8x=5.6
x=7
(3/4):x=(2/5):24
x=[(3/4)*24]/(2/5)
x=45
=(9/20)*(1/6)+(1/6)*(1/20)
=(1/6)*(9/20+1/20)
=(1/6)*(10/20)
=1/12
4-[3.75*(1.2-1/3)+3/4]
=4-[(15/4)*(1.2-1/3)+3/4]
=4-(3/4)*(5*1.2-5*(1/3)+1)
=4-(3/4)*(7-5/3)
=0
(5/6)*0.25+(1/4)*(1/6)
=(1/4)*(5/6+1/6)
=1/4
x-0.2x=5.6
0.8x=5.6
x=7
(3/4):x=(2/5):24
x=[(3/4)*24]/(2/5)
x=45
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