Final answer:
1 1/2 cups is equivalent to approximately 292.08 quarter-teaspoons. The conversion is done by first finding the number of teaspoons in one cup and then converting those teaspoons to 1/4 teaspoons.
Step-by-step explanation:
Conversion from Cups to Teaspoons:
To convert 1 1/2 cups to 1/4 teaspoons, you first need to know how many teaspoons are in one cup. Since 1 teaspoon is approximately 4.93 milliliters and there are 240 milliliters in a cup, we start by calculating the total number of teaspoons in 1 cup.
1 cup = 240 milliliters ÷ 4.93 milliliters/teaspoon ≈ 48.68 teaspoons
Now, multiply the number of teaspoons in one cup by 1 1/2 to find out how many teaspoons are in 1 1/2 cups:
48.68 teaspoons/cup × 1 1/2 cups = 73.02 teaspoons
Finally, to convert to 1/4 teaspoons, you would multiply the total number of teaspoons by 4, since there are four 1/4 teaspoons in one teaspoon:
73.02 teaspoons × 4 = 292.08 quarter-teaspoons