7×1+12= ? 7\times1+\frac{1}{2}=\text{ ?} 7×1+21= ?
According to the order of operations, we first place the multiplication operation inside parenthesis:
(7×1)+12= (7\times1)+\frac{1}{2}= (7×1)+21=
Then, we perform this operation:
7×1=7 7\times1=7 7×1=7
Finally, we are left with the answer:7+12=712 7+\frac{1}{2}=7\frac{1}{2} 7+21=721
712 7\frac{1}{2} 721