Which is greater?
1.2/3 or 4/7
2.3/5 or 4/6
3.2/9 or 1/6
4.6/8 or 10/12
5.4/6 or 3/4

explain your method that you have followed. why is knowing the lcm important when expressing fractions in the same denomination?

He weights of 2-pound bags of best dog food are approximately normally distributed with a given mean  and standard deviation  according to the empirical rule, what percentage of the bags will have weights within 3 standard deviations of the mean? 47.5%68%95%99.7%