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URGENT!!! DAU COROANA


URGENT DAU COROANA class=

Răspuns :

1. a = 1 1/4 = 5/4

b = 2/5

a × b = 5/4 × 2/5 = 1/2

2. a = 7/8

a × b = 7/10

7/8 × b = 7/10

b = 8/7 × 7/10 = 4 × 1/5 = 4/5

3. b = 1 1/2 = 3/2

a × b = 5/6

a × 3/2 = 5/6

a = 2/3 × 5/6 = 1/3 × 5/3 = 5/9