Answer:
10/69
Explanation:
1.8 divided by 12.42
Convert decimal into a fraction
9/6 divided by 621/50
Divide by a fraction, multiply by the reciprocal of that fraction.
9/6 * 50/621
Reduce the numbers with the greatest common divisor 5
9 * 10/621
Reduce the numbers with the greatest common divisor 9. And your answer is...
10/69