Question

b) mmc (7,13)

C) mmc(15,20) d)mmc (24,60,96

Answer 1

A)
Mmc(14,21)= 42

14, 21: 2
7, 21: 3
7, 7: 7
---------------
1,1

= 2.3.7
= 6.7
= 42
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B)
Mmc (7,13) = 91

7, 13: 7
1, 13: 13
---------------
1, 1

= 7.13
= 91
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C)
Mmc(15,20)= 60
15, 20: 2
15, 10: 2
15, 5: 3
5, 5: 5
----------------
1, 1

= 2.2.3.5
= 4.15
= 60
________________

D)
Mmc (24,60,96) = 480

24,60,96: 2
12, 30, 48: 2
6, 15, 24: 2
3, 15, 12: 2
3, 15, 6: 2
3, 15, 3: 3
1, 5, 1: 5
--------------
1, 1, 1

= 2^5 . 3 . 5
= 32 . 3 . 5
= 160.3
= 480
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