Question

1)4/5÷1/5=
2)1/5÷1/5=
3)1/4÷1/3=
4)1/6÷2/5=
5)2/3÷1/6=
6)5/12÷5/6=
7)3 1/3÷1/2=
8)-3 1/2÷ -2 1/2
9)trevin has a project that requires 1/4 inch thick boards.he has a board that is 5/12 inch thick.into how many 1/4 inch boards can he cut his 5/12 inch thick board?
10)megan has 5/8 cup of brown sugar.her recipe calls for 1/4 cup.how many batches can she make?

please help me and show your work.

Answer 1

please help me @mathhelper.

Answer 2

even if you only have 2 or 3 answers, it will help.

Answer 3

when dividing by fractions, just flip the divisor and multiply

9)trevin has a project that requires 1/4 inch thick boards.he has a board that is 5/12 inch thick.into how many 1/4 inch boards can he cut his 5/12 inch thick board?

5/12 ÷ 1/4 = 5/12 * 4/1 = 20/12 = 5/3 = 1 2/3
so, really only one board.
since 1/4 = 3/12 and 5 < 2*3

10)megan has 5/8 cup of brown sugar.her recipe calls for 1/4 cup.how many batches can she make?

5/8 ÷ 1/4 = 5/8 * 4/1 = 20/8 = 5/2 = 2 1/2
so just 2 whole batches
or, since 1/4 = 2/8,
5/8 ÷ 2/8 = 5/2
If the denominators are the same, just divide the numerators

Answer 4

thank you so much oobleck!