Question

10.calcule mentalmente


a) mmc (2,15) b) mmc (6,15) c) mmc (5,15)

Answer 1

A=30.
B=60
C=15

15,5|3. 3.5=15
5 ,5 |5.
1 ,1 |

Answer 2

a) MMC (2,15) = 30

2,15 : 2
1,15: 3
1,5: 5
1,1  = 2.3.5 = 6.5 = 30
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b) MMC (6,15) = 30

6,15: 2
3,15: 3
1,5: 5
1,1   = 2.3.5 = 6.5 = 30
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c) mmc (5,15) = 15

5,15: 3
5,5: 5
1,1  = 3.5 = 15