34×21×56=
To solve the multiplication of the fractions 34, 21, and 56, we'll follow these steps:
- Step 1: Multiply the numerators: 4×1×6=24.
- Step 2: Multiply the denominators: 3×2×5=30.
- Step 3: Form the new fraction: 3024.
- Step 4: Simplify the fraction 3024:
Find the greatest common divisor (GCD) of 24 and 30, which is 6.
Divide both the numerator and the denominator by their GCD:
30÷624÷6=54.
Therefore, the product of 34×21×56=54.
The correct choice from the given options is : 54.