**1**+**4**+6=11 so susan gets**1**/11**1**/11 x 163 =14.818181821 Answers · Science & Mathematics · 03/10/2010

John can do 1 / 4 of the job in one day. Mary...job. This is because 1 / 4 + 1 /3=7/12. So this is...time) = how much of the job they can do . So, we know that 7/12 • x...

1 Answers · Science & Mathematics · 17/10/2009

... alone,

**John**can do the job in 5 hrs, and Peter in**4**hrs. =>**John**can do**1**/5 of the work in**1**hour and Peter can do**1**/**4**of the work in one hour...5 Answers · Science & Mathematics · 17/04/2007

Sally can paint

**1**/ 4th of the house in an hour.**John**can paint**1**/6th of the house in an hour. You find the lowest...1 Answers · Science & Mathematics · 12/01/2009

Sally

**does 1**/**4**of the work in**1**hour, and**John does 1**/6 in an hour. In x hours, Sally**does**x/**4**of the...4 Answers · Science & Mathematics · 17/05/2011

**1**). Rove needs**4**days in**1**day work done =**1**/**4**Harris and**John**, working together, need 3 days in**1**day work done by both =**1**...3 Answers · Science & Mathematics · 20/10/2010

...it up into 16ths, because that's the lowest common denominator. So:

**1**/**4**=**4**/16**1**/16 =**1**/16 3/8 = 6/16 Then you add up the 16ths.**4**/16 +**1**/16...4 Answers · Science & Mathematics · 30/01/2009

3/

**4**x**4**= number of days needed 3/**4**x**4**=12/**4**=3 It takes**John**3 days to finish the whole job3 Answers · Science & Mathematics · 14/07/2010

If

**John does**it in 6 hours, he can complete**1**/6 of the job in one hour. Silvester can do**1**/**4**of the job in an hour. How long it will take them is ...5 Answers · Science & Mathematics · 14/03/2008

Just add the fractions, and subtract the total from

**1**to get the answer.**1**/**4**+**1**/16 + 3/8 =**4**/16 +**1**/16 + 6/16 = 11/16**1**- 11/16 = 16/16 - 11/16 = 5/16 for the 4th child7 Answers · Science & Mathematics · 06/10/2011