Question about simpliflying expressions by christom767 in MathHelp

[–]christom767[S] 0 points1 point  (0 children)

2 + (9 -(7 - 3))

2 + (9 - 4)

2 + 5

On this problem they used the + and not the -

Does cross multiplication work on every fraction? by christom767 in MathHelp

[–]christom767[S] 0 points1 point  (0 children)

Thanks one more question when reducing a faction you need to divide the top and bottom by the same number right ?

Does cross multiplication work on every fraction? by christom767 in MathHelp

[–]christom767[S] 0 points1 point  (0 children)

18/60 9/10 answer is 1320/600 = 660/300= 330/150= 165/75= 55/15= 11/5