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A number is a multiple of 48 if it's a multiple of 3 and 16 at the same time
48 = 2^4 x 3 = 16 x 3
For example 10032 is a multiple of 48 because 1 + 3 + 2 = 6, which means it's a multiple of 3, and ends in 0032, which means it's a multiple of 16
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Rafa
RossDivisibility by 48 requires divisibility by 3 AND by 48
- Divisibility by 3 requires tat the digital root (sum of digits) is divisible by 3.
- Divisibility by 16 requires that the number formed by the last four digits is divisible by 16.
Of both these are satisfied by a number then it is divisible by 48.
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How can the divisibility rules help us simplify fractions?
i think divisibility rules help with fractions because it helps you reduce the fraction to make i a simple fraction.
What numbers 2 3 5 9 divides into 123456789 evenly using divisibility rules?
3 and 9. And they divide into 123456789 whether or not you use divisibility rules!
Reduce 324/711 using divisibility rules?
0.4557
324/711 reduce using divisibility rules?
0.4557
Who invented the divisibility rules?
Oh honey, divisibility rules have been around longer than your grandma's secret meatloaf recipe. But if you want a name to drop at your next trivia night, credit goes to good ol' Euclid. He's the OG mathematician who laid down the law on how numbers can play nice and divide evenly.
