find two natural number in ratio5:7 such tahat their lcm is 210
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let the numbers are x and y
because given in question there ratio 5:7
hence
x/y = 5/7
7x = 5y
7x + 5y = 210
10 y = 210
y = 21
similarly x = 15
because given in question there ratio 5:7
hence
x/y = 5/7
7x = 5y
7x + 5y = 210
10 y = 210
y = 21
similarly x = 15
Sweety261:
but lcm of 21 and 15 is 105
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