subtract the fractions and simplify the answer 78/9-53/5

1) get the denominators to be the same: 78/9x5= 390/45. 53/5x9= 477/45.2)subtract the fractions: 390/45 - 477/45= 87/453)find the highest common denominator:common denominator: 387/3= 2945/3= 15answer: 29/15