Question

Help John find the incorrect step in the given calculation:

• A. Step C
• B. Step D
• C. Step B
• D. Step A

Answer 1

The correct option is B Step D

To find the incorrect step, we perform the calculation correctly.

Given:

$A=\frac{5}{9};B=\frac{4}{3}$

$A:B=\frac{5}{9}:\frac{4}{3}$

$A:B=\frac{5}{9}:\frac{4\times 3}{3\times 3}$

$A:B=\frac{5}{9}:\frac{12}{9}$

$A:B=5:12$

Comparing the correct calculation with the given calculation, we find:


$\therefore$ The incorrect step made in the calculation is step D.