Jackie

Jackie studied for 1¼ hours, Tom studied for 1¼, and John studied for 2 2/4 hours. How long did they study in all?

Correct answer:

t =  5 h

Step-by-step explanation:

J=141=1+41=41 4+1=44+1=45=1.25 h T=141=1+41=41 4+1=44+1=45=1.25 h H=242=2+42=42 4+2=48+2=410=25=2.5 h  t=J+T+H=45+45+25=45+45+410=45+5+10=420=5 h



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