Question

Oblicz : a) sumę liczb 2 3/5 i 7 5/6 b) różnicę liczb 3 1/7 i 3/4 c)o ile większa jest liczba 5 7/9 od liczby 3 1/3

Answer 1

a) 2 3/5 + 7 5/6 = 2 18/30 + 7 25/30 = 9 43/30 = 10 13/30

b) 3 1/7 - 3/4 = 3 12/28 - 21/28 = 2 40/28 - 21/28 = 2 19/28

c) 5 7/9 - 3 1/3 = 5 7/9 - 3 3/9 = 2 4/9

Answer 2

a) 2 3/5 + 7 5/6 = 2 18/30 + 7 25/30 = 9 43/30 =  10 13/30

b) 3 1/7 - 3/4 = 3 4/28 - 21/28 = 2 32/28 - 21/28 = 2 11/28

c) 5 7/9 - 3 1/3 = 5 7/9 - 3 3/9 = 2 4/9