To multiply a whole number by a fraction, you first convert the whole number to a fraction by putting it over 1, and then multiply the fractions.
To convert 12 to a fraction, you put it over 1: 12/1.
Then, you can multiply the two fractions:
(12/1) × (1/12)
To multiply fractions, you multiply the numerators together and the denominators together:
(12 × 1) / (1 × 12)
12/12
The numerator and denominator have a common factor of 12, so we can simplify the fraction by dividing both the numerator and denominator by 12:
1/1
So, 12 1/5 × 1/12 = 1/1 or simply 1.
