Solve for y
y=\frac{11}{63}\approx 0.174603175
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y=\frac{8}{9}-\frac{5}{7}
Subtract \frac{5}{7} from both sides.
y=\frac{56}{63}-\frac{45}{63}
Least common multiple of 9 and 7 is 63. Convert \frac{8}{9} and \frac{5}{7} to fractions with denominator 63.
y=\frac{56-45}{63}
Since \frac{56}{63} and \frac{45}{63} have the same denominator, subtract them by subtracting their numerators.
y=\frac{11}{63}
Subtract 45 from 56 to get 11.
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