Question

1-Calcule o m.m.c. dos números
a)180 e 84
b)375 e 225
c)98,144 e 240
d)12,15 e 20​

Answer 1

a)

180,84∣2

90,42∣2

45,21∣3

15,7∣3

5,7∣5

1,7∣7

1,1

Portanto, o MMC de 180 e 84 será:

MMC=2^2\times 3^2\times 5\times 7=1260MMC=2

2

×3

2

×5×7=1260

b)

375, 225 | 3

125, 75 | 3

125, 25 | 5

25, 5 | 5

5,1 |5

1, 1

c)

96,144,240|2

48,72,120|2

24,36,60|2

12,18,30|2

6,9,15|2

2,3,5|2

1,3,5|3

1,1,5|5

1,11

d)

12,15,20 | 2

6,15,10 | 2

3,15, 5 | 3

1, 5, 5 | 5

1,1,1 |

mmc (12,15,20) = 2 x 2 x 3 x 5 = 60