To find the product of 1 1/4 and 2 1/5, we first need to convert the mixed numbers to improper fractions:
1 1/4 = 5/4
2 1/5 = 11/5
Now, we can multiply the two fractions:
(5/4) * (11/5) = (5 * 11) / (4 * 5)
= 55 / 20
To simplify this fraction, we can divide both the numerator and denominator by their greatest common divisor, which is 5:
55 / 20 = (55 ÷ 5) / (20 ÷ 5)
= 11 / 4
Therefore, the product of 1 1/4 and 2 1/5 is 11/4 or 2 3/4
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