Answer:
activity 2
1. 28
2. 15/8
3. 3 3/4
4. 9/39
5. 4/51
assessment
1. 24/9 = 1
2. 29/12 = 1
3. 5/49 = 1
4. 6/54 = 1
5. 30/159 = 1
Step-by-step explanation:
1. 12/28 × 28/12 = 1
12 × 28 = 336 336/336 or 1
28 × 12 = 336
2. 8/15 × 15/8 = 1
8 × 15 = 120 120/120 or 1
15 × 8 = 120
3. 3 3/4 × 4/15 = 1
4 × 3 = 12 + 3 = 15
15/4 × 4/15 = 60/60 or 1
4. 9/39 × 4 3/9 = 9/39 × 39/9 = 351/351 or 1
9 × 4 = 36 + 3 = 39
5. 12 3/4 × 4/51 = 51/4 × 4/51 = 204/204 or 1
4 × 12 = 48 + 3 = 51
51 × 4 = 204
4 × 51 = 204
Assesment
1. 9/24 × 24/9 = 216/216 or 1
2. 12/29 × 29/12 = 348/348 or 1
3. 9 4/5 × 5/49 = 245/245 or 1
5 × 9 = 45 + 4 = 49 = 49/5
4. 7 12/6 × 6/54 = 324/324 or 1
6 × 7 = 42 + 12 = 54 = 54/6
5. 5 9/30 × 30/159 = 4770/4770 or 1
30 × 5 = 150 + 9 = 159 = 159/30
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Answers & Comments
Answer:
activity 2
1. 28
2. 15/8
3. 3 3/4
4. 9/39
5. 4/51
assessment
1. 24/9 = 1
2. 29/12 = 1
3. 5/49 = 1
4. 6/54 = 1
5. 30/159 = 1
Step-by-step explanation:
activity 2
1. 12/28 × 28/12 = 1
12 × 28 = 336 336/336 or 1
28 × 12 = 336
2. 8/15 × 15/8 = 1
8 × 15 = 120 120/120 or 1
15 × 8 = 120
3. 3 3/4 × 4/15 = 1
4 × 3 = 12 + 3 = 15
15/4 × 4/15 = 60/60 or 1
4. 9/39 × 4 3/9 = 9/39 × 39/9 = 351/351 or 1
9 × 4 = 36 + 3 = 39
5. 12 3/4 × 4/51 = 51/4 × 4/51 = 204/204 or 1
4 × 12 = 48 + 3 = 51
51 × 4 = 204
4 × 51 = 204
Assesment
1. 9/24 × 24/9 = 216/216 or 1
2. 12/29 × 29/12 = 348/348 or 1
3. 9 4/5 × 5/49 = 245/245 or 1
5 × 9 = 45 + 4 = 49 = 49/5
4. 7 12/6 × 6/54 = 324/324 or 1
6 × 7 = 42 + 12 = 54 = 54/6
5. 5 9/30 × 30/159 = 4770/4770 or 1
30 × 5 = 150 + 9 = 159 = 159/30