Odpowiedź:
a) ( 3 1/2 + 1 1/2 ) * 3/5 = 5 * 3/5 = 3
b) ( 2 2/3 - 4/5 ) * 1 3/7 = ( 2 10/15 - 12/15 ) * 1 3/7 = 1 13/15 * 1 3/7 = 195/15 * 10/7 = 13 * 1,428571428571 = 18,57142857142
c) ( 15 2/3 - 7 1/2 ) : 1 1/2 = ( 15 4/6 - 7 3/6 ) : 1 1/2 = 8 1/6 : 1 1/2 = 49/6 : 3/2 = 49/6 : 9/6 = 49/6 * 6/9 = 5,(4)
d) 2 * ( 1/3 * 1/3 ) + 3 * ( 1/2 * 1/2 * 1/2 ) = 2 * 1/9 + 3 * 1/8 = 2/9 + 3/8 = 43/72
e) 4 1/2 * 1 1/3 - 2 2/5 * 5/7 = 6 - 1 5/7 = 4 2/7
f) 1 2/3 - 5/6 + 2 1/10 : 1 6/15 = 1 2/3 - 5/6 + 7/10 = 5/6 + 7/10 = 1 8/15
g) ( 5/8 + 1/2 ) : 1 1/2 - 1/3 = 1 1/8 : 1 1/2 - 1/3 = 3/4 - 1/3 = 5/12
Mam nadzieję, że pomogłam.
