Question #e3a1b

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Answer 1 · 2017-10-04T21:41:43

56

It just means find the first number that appears in both the 7 and the 8 times tables.

Answer 2 · 2017-10-07T19:20:58

$lcm (7, 8) = 56$ $lcm(7,8)=56$

another use the formula

if $a, b$ $a,b" "$ are two numbers

$a b = h c f (a, b) \times lcm (a, b)$ $ab=hcf(a,b)xxlcm(a,b)$

$7 \times 8 = h c f (7, 8) \times lcm (a, b)$ $7xx8=hcf(7,8)xxlcm(a,b)$

$56 = 1 \times lcm (a, b)$ $56=1xxlcm(a,b)$

$:.lcm(7,8)=56$

Answer 3 · 2017-12-03T18:06:13

$7xx8=56$

7 and 8 are consecutive numbers so their lcm is their product.