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a fost răspuns

A) 2/5 ÷ 8/15 × 4/3
B) 9/10 ÷ ( 5/12 × 4 )
C) 14/6 ÷ (2/5÷4/25)
D) 10/9 ÷ 5/27 ÷ 3/2
Ajutor!

Răspuns :

A) 2/5 ÷ 8/15 × 4/3 =
2/5x15/8x4/3=3/4x4/3=1

B) 9/10 ÷ ( 5/12 × 4 )=
 9/10 ÷ ( 5/12 × 4 )=
9/10:5/3=9/10x3/5=27/50 

C) 14/6 ÷ (2/5÷4/25)
14/6 ÷ (2/5x25/4)=14/6:5/2=14/6x2/5=14/15

D) 10/9 ÷ 5/27 ÷ 3/2 =10/9x27/5x2/3=2x2=4

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