WEBVTT

1
00:00:00.000 --> 00:00:04.180
Here is the problem: 9 over 4 / 7 over 7.

2
00:00:04.630 --> 00:00:08.531
Exact arithmetic with fractions (results kept in lowest terms).

3
00:00:09.331 --> 00:00:13.290
Dividing by a fraction means multiplying by its reciprocal.

4
00:00:13.740 --> 00:00:17.095
Multiply numerators and multiply denominators.

5
00:00:17.545 --> 00:00:19.681
Final answer in lowest terms.

6
00:00:20.481 --> 00:00:22.617
So the answer is 9 over 4.

7
00:00:23.067 --> 00:00:36.267
Fractions are combined over a common denominator for addition and subtraction, multiplied straight across, and divided by multiplying by the reciprocal. The result is reduced by the greatest common factor.

8
00:00:37.067 --> 00:00:41.061
Decimal check: 9 over 4 approximately 2.25.

9
00:00:41.511 --> 00:00:44.077
As a mixed number: 2 1 over 4.
