Question

queation is
인 ( left[5left(frac{7}{x}right] timesleft[4 times frac{1}{13}right]-1=right. )
Find ( x-y=? )
we get
( 50 frac{7}{9} times 2 frac{61}{13}=12 )
( frac{52}{9} times frac{27}{13}=12 )
( 4 times 3=12 )
( 12=12 )

# 20. 1f5-xy 3 (A) 2 (C)7 VNX = 12, where fractions are in their lowest terms, then x - y is equal to (B) 4 (D) 9

Solution