How do you multiply #\frac { 39} { 52} \cdot \frac { 38} { 51}#?
2 Answers
Feb 19, 2017
Explanation:
Feb 19, 2017
Explanation:
Factorise the numerators and denominators so we can work out what we can cancel:
#39/52*38/51 = (color(purple)(cancel(color(black)(3)))*color(red)(cancel(color(black)(13))))/(color(green)(cancel(color(black)(2)))*2*color(red)(cancel(color(black)(13))))*(color(green)(cancel(color(black)(2)))*19)/(color(purple)(cancel(color(black)(3)))*17) = 19/(2*17) = 19/34#