canceling double fractions how?I had this example: 11 5 2 = 11 10 then: 2...

flightwingsd2

flightwingsd2

Answered

2022-06-25

canceling double fractions how?
I had this example:
11 5 2 = 11 10
then:
2 1 5 2 = 11 10
1 5 11 10
is this right canceling of double equation?

Answer & Explanation

trajeronls

trajeronls

Expert

2022-06-26Added 21 answers

I always regarded the triple (or quadruple) fraction notation to be confusing and wrong, so instead (even to this day) I always make myself read fractions like this:
The fraction a b c is equivalent to a b ÷ c and therefore a b × 1 c = a b c . For quadruples it works the same: a b c d = a b ÷ c d = a b × d c = a d b c
So using this I would say 11 5 2 = 11 5 × 1 2 = 11 10
flightwingsd2

flightwingsd2

Expert

2022-06-27Added 5 answers

No, it isn't. Multiplying
11 5 2
by
5 5   ( = 1 )
gives you
11 5 2 = 11 5 2 5 5 = 11 5 5 2 5 = 11 10 .

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