Question

need to round improper fraction 149/12 to the nearest tenth

Answer 1

This is\[
\frac{149}{12}=12\frac{5}{12}
\]We know:
\[
0.4<\frac{5}{12}<0.45\implies\frac{5}{12}\approx0.4
\]So:
\[
12+0.4=12.4
\]You could also divide, which is easier, but I like multiplying, better.
Enjoy.