Numerator and denominator of a fraction are in the ratio of 4:7. It reduces to 3/4 on adding 5 to the numerator and subtracting 5 from the denominator. Find the fraction.
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let the numerator be 4x and denominator be 7x.
from case given:
4x+5/7x-5=3/4
16x+20=21x-15
5x=35
x=7
numerator =4x=4×7=28
denominator =7x=7×7=49
fraction =28/49
or4/7
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