Question
Devide the sum of 5/21 and 4/7 by their difference
Answers
Steve
just plug and chug:
(4/7+5/21)÷(4/7-5/21)
= (12/21+5/21)÷(12/21-5/21)
= (12+5)/(12-5)
...
(4/7+5/21)÷(4/7-5/21)
= (12/21+5/21)÷(12/21-5/21)
= (12+5)/(12-5)
...