So 0.344 means 344/1000 (0.1=1/10 0.21=21/100 0.213=213/1000) factor out the 'ones' (exg 4/8=1/2 times 4/4[4/4=1 so it can be canceled out]) 344=2*2*2*43 1000=2*2*2*5*5*5 we notice that there is a 2*2*2 in both groups so we can cross it out (or 2*2*2=8 so divide top number and bottom number by 8) 43/(5*5*5) 43/125
Well first since its .344 this would be in the thousandths place so to start it would be 344/1000. Divide both the numerator and denominator by 2 which would be 172/500. Divide both by 2 once again 86/250. Divide by 2 once again, now its 43/125. Now since 43 is a prime number, it cannot be reduced anymore.
Answer: 5 pounds of ground beef ( don't see second :-( )
Step-by-step explanation: I found the unit rate per pound ( 2.25 ) and then multiplied that by the other pounds to compare the two prices and I only found 5 pounds to be incorrect, but I'll keep digging, hope this helps!