Question

find the value of 3by4 of0.048 and give your answer as a fraction.​

Answer 1

Answer:

Best Answer: 3/8 (double the denominator)

You can calculate “half” of a fraction by doubling the denominator (bottom number * 2), so half of 3/4 is 3/8 (formula: half of a/b is the same as a/(b*2), for example half of 3/4 equals 3/(4*2) which equals 3/8).

An alternate method is to reduce the numerator by half (top number divided by 2) . With fractions, you can always multiple the numerator (top number) and denominator (bottom number) by the same value, and still have an “equivalent” value. 3/4 can be converted to 6/8 by multiplying the numerator and denominator by 2, as: (3*2)/(4*2) = 6/8. (Both 3/4 and 6/8 calculate to 0.75). With 6/8, you can easily divide the numerator by 2, to return half of the fraction, or 3/8.

You can also convert a fraction to a decimal, then divide by 2 or multiply by 0.5 (half). So 3/4 can be calculated as 3 divided by 4 (which equals 0.75), divide by 2 (or multiple by 0.5) returns 0.375 (all equally valid methods to return the same same result, calculating “half” of a fraction).

Visually you can think of a pizza divided into 4 slices, and one slice is missing. So you have 3 large slices left of a full 4 slice pizza, or “3/4” of a pizza. If you divide each slice into 2, you now have 6 smaller slices, of a possible 8 slice pizza (if all pieces in the full 4 slice pizza were sliced in half, the full pizza would contain 8 equally sized smaller slices). You can then remove half of the remaining slices of pizza (remove 3 of the 6 remaining slices). You now have 3 slices left of an 8 slice pizza, or 3 of 8 or 3/8. You have half of 3/4 of a pizza (and half of the original fraction).