SOLUTION: how do i find the exact answer to this problem... 2 1/4 x 2 1/5 .. I got 99/20 but I got it wrong. the correct answer was 4 19/20 .. How was that the correct anwer? and how did the

Algebra ->  Numeric Fractions Calculators, Lesson and Practice -> SOLUTION: how do i find the exact answer to this problem... 2 1/4 x 2 1/5 .. I got 99/20 but I got it wrong. the correct answer was 4 19/20 .. How was that the correct anwer? and how did the      Log On


   

Question 717982: how do i find the exact answer to this problem... 2 1/4 x 2 1/5 .. I got 99/20 but I got it wrong. the correct answer was 4 19/20 .. How was that the correct anwer? and how did they get the answer.. Please help!! and thanks

Answer by MathLover1(20849) About Me  (Show Source):
You can put this solution on YOUR website!
2%281%2F4%29%2A2%281%2F5%29......first 2+%281%2F4%29=%284%2A2%2B1%29%2F4=9%2F4 and 2+%281%2F5%29=%285%2A2%2B1%29%2F4=11%2F5
+%289%2F4%29%2A%2811%2F5%29...multiply nominator by nominator, and denominator by denominator

+99%2F20.....divide nominator by denominator: 99%3A20=4 and reminder is 19; so, you have 4%2819%2F20%29