Question

Oblicz: A. 9 i 1/7 * 1 i 1/8 : 2 i 2/3 = B. 5 i 20/21 : 5 i 5/9 * 1 i 19/30 = C. 8 i 1/3 : 16 i 2/3 : 2 i 1/2 = D. 12/31 : 1 i 4/11 = E. 3 i 1/2 : 5/9 = F. 4 i 1/5 :7/15 = G. 2 i 7/10 : 4 i 1/20 = H. 4 i 5/6 : 1 i 1/5 I. 3 i 3/7 : 1 i 1/20 Proszę o odpowiedź

Answer 1

 

a)9 1/7 x 1 1/8 : 2 2/3 = 64/7 * 9/8 : 8/3 = 72/7 * 3/8 = 27/7 = 3 6/7

 

b) 5 20/21 : 5 5/9 x 1 19/30 = 125/21 : 50/90 * 49/30 = 125/21 * 90/50 * 49/30 = 735/42 = 17 1/2

 

c) 8 1/3 : 16 2/3 : 3 1/2 = 25/3 : 50/3 : 7/2 = 25/3 * 3/50 * 2/7 = 1/7