Question

7 times 10 times 4 times 1 plus (2 times 1/10) plus (5 times 1/100)

Answer 1

$7*10*4*4+2*1 \frac{1}{10} + 5* \frac{1}{10}$
= $\frac{1121}{4} Decimal: 280.25$

Answer 2

7*10*4*1+(2*1/10)+(5*1/100) =70*4*1+(2*1/10)+(5*1/100) =280*1+(2*1/10)+(5*1/100) =280+(2*1/10)+(5*1/100) =280+(2/10)+(5*1/100) =280+(1/5)+(5*1/100) =1401/5+(5*1/100) =1401/5+(5/100) =1401/5+(1/20) =1121/4 =280 and 1/4