5c+cd5c+cd5, c, plus, c, d when c=\dfrac15c=
5
1
c, equals, start fraction, 1, divided by, 5, end fraction and d=15d=15d, equals, 15
Answers
I am trying to understand equivalent fractions. Example:
6 1
-- = -
12 2
Hi, Sam.
This is 6/12:
+---+---+---+---+---+---+
|xxx|xxx|xxx|xxx|xxx|xxx|
|xxx|xxx|xxx|xxx|xxx|xxx|
+---+---+---+---+---+---+
| | | | | | |
| | | | | | |
+---+---+---+---+---+---+
The big rectangle is cut into 12 equal-sized boxes, and 6 are marked
with x's. Each box is 1/12 of the whole, so 6 of them is 6/12.
This is 1/2:
+-----------------------+
|xxxxxxxxxxxxxxxxxxxxxxx|
|xxxxxxxxxxxxxxxxxxxxxxx|
+-----------------------+
| |
| |
+-----------------------+
The big rectangle is cut into 2 equal-sized boxes, and 1 is marked
with x's. Each box is 1/2 of the whole.
Both pictures show the same space marked with x's. You could imagine
the rectangle being a chocolate cake. If you cut it in 2 equal-sized
pieces and eat one, you have eaten the same amount as if you cut it in
12 equal-size pieces and ate 6 of them. The two fractions are
EQUIVALENT.