WEBVTT

1
00:00:00.000 --> 00:00:04.017
Here is the problem: 100 divided by 10 divided by 2.

2
00:00:04.467 --> 00:00:08.368
Exact arithmetic with fractions (results kept in lowest terms).

3
00:00:09.168 --> 00:00:12.813
Dividing by a fraction means multiplying by its reciprocal.

4
00:00:13.264 --> 00:00:16.584
Multiply numerators and multiply denominators.

5
00:00:17.035 --> 00:00:21.528
Simplify. Divide numerator and denominator by their GCF, 2.

6
00:00:21.978 --> 00:00:24.114
Final answer in lowest terms.

7
00:00:24.914 --> 00:00:26.574
So the answer is 5.

8
00:00:27.024 --> 00:00:39.888
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.

9
00:00:40.688 --> 00:00:43.498
Decimal check: 5 approximately 5.