Question

Aduceti la acelasi numitor comunurmatoarele fractii ordinare: a) 9/10 si 3/4 , b) 5/8 si 7/12, c) 2/15 si 5/6 , d) 4/9 si 7/12 repede va rog am nevoie dau coroana si 100 puncte

Answer 1

Răspuns:

a) ²⁾9/10 si ⁵⁾3/4

10 = 2 × 5

4 = 2²

cmmmc (10; 4) = 2² × 5 = 20

b) ³⁾5/8 si ²⁾7/12

8 = 2³

12 = 2² × 3

cmmmc (8; 12) = 2³ × 3 = 24

c) ²⁾2/15 si ⁵⁾5/6

15 = 3 × 5

6 = 2 × 3

cmmmc (15; 6) = 2 × 3 × 5 = 30

d) ⁴⁾4/9 si ³⁾7/12

9 = 3²

12 = 2² × 3

cmmmc (9; 12) = 2² × 3² = 36