Simplification Test 8

Question : 13 of 40

Marks: +1, -0

1/{1 . 2 . 3}+1/{2 . 3 . 4}+1/{ 3 . 4 . 5 }+1/{4 . 5 . 6}

is simplified to:

Solution:

1/{1 . 2 . 3}+1/{2 . 3 . 4}+1/{ 3 . 4 . 5 }+1/{4 . 5 . 6}

={120+30+12+6}/{1 . 2 . 3 . 4 . 5 . 6 }

=168/720=7/30

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