Multiply 3/8 times 12. Write the answer in simplest form and convert to a mixed number.

To multiply 3/8 by 12, we multiply the numerators and the denominators:

(3/8) * 12 = (3*12) / (8*1) = 36/8

To simplify this fraction, we divide both the numerator and denominator by their greatest common factor, which is 4.

(36/8) / 4 = 9/2

To convert this improper fraction to a mixed number, we divide the numerator (9) by the denominator (2) and write the remainder as a fraction:

9 ÷ 2 = 4 with a remainder of 1

Therefore, the final answer in simplest form and as a mixed number is:

9/2 = 4 1/2

Hiroshi multiplied 2/7 times 3 and got 6/21 . What final answer should he have gotten

To multiply 2/7 by 3, we multiply the numerators and the denominators:

(2/7) * 3 = (2 * 3) / (7 * 1) = 6/7

Therefore, the final answer Hiroshi should have gotten is 6/7.