Answer:
65,520
Step-by-step explanation:
12x13x20x21=64,520
Explanation:
A "reduced" fraction is one that has mutually prime numerator and denominator. That is, the numerator and denominator have no common factors.
A fraction is "reduced" by canceling common factors from numerator and denominator. If "a" is a factor common to the numerator and denominator of a fraction, that fraction can be written with "a" canceled from each:

Here is a numerical example:

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A numerator factor and a denominator factor "cancel" because their ratio is 1, the identity element for multiplication. Anything times 1 is just that thing.
10.5% of 678 =
0.105(678) = 71.19 <==
Hope this helps.
Answer:
5 4/9
Step-by-step explanation:
9 * 5 = 45
49 - 45 = 4
9 is the value of each side. There are 7 sides so 63 divided by 7 is 9.