One half of a 3/4 teaspoon is equal to 3/8 or 0.375 teaspoons. Multiplying the fraction 1/2 by 3/4 is one way to find the answer in fraction form for 3/8.
To multiply two fractions, one multiplies the top numbers, or numerators, of each fraction, followed by the bottom numbers, or denominators. If the answer cannot be expressed in the simplest terms, it must be simplified.
Converting the fractions 1/2 and 3/4 to decimals is a second method for writing 0.375 teaspoons in decimal form. To convert a fraction to a decimal, divide the numerator by the denominator. In decimal form, 1/2 equals 0.5 and 3/4 equals 0.75. 0.375 is the result of multiplying 0.5 and 0.75.