the sum of the number and denominator of a fraction is 12 if the denominator is increased by 3 and the fraction becomes half
find the fraction
Anonymous:
the sum of numerator and denominator is 12
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heya it's Aastha !!!!!!
Let call our fraction xy, we know that:
x+y=12
and
xy+3=12
from the second:
x=12(y+3)
into the first:
12(y+3)+y=12
y+3+2y=24
3y=21
y=213=7
and so:
x=12−7=5
x/y = 5/7
thnks@
hope it help you
Let call our fraction xy, we know that:
x+y=12
and
xy+3=12
from the second:
x=12(y+3)
into the first:
12(y+3)+y=12
y+3+2y=24
3y=21
y=213=7
and so:
x=12−7=5
x/y = 5/7
thnks@
hope it help you
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