Question

Działania łączne na ułamkach zwykłych
9i2/5-7i3/4+8i1/2=
8i4/10: 2/5x1/2=
1i3/5x2i7/10:1i1/15=
24i1/8 - 3x2i1/6+1/4=

Answer 1

9 2/5 - 7 3/4 + 8 1/2 =  8 28/20 - 7 15/20 + 8 10/20 = 1 13/20 + 8 10/20 = 10 3/20
8 4/10 : 2/5 * 1/2 = 84/10 * 5/2 * 1/2 = 42/2 * 1/2 = 21/2 = 10 1/2
1 3/5 * 2 7/10 : 1 1/15 = 8/5 * 27/10 : 16/15 = 4/5 * 27/5 * 15/16 =
= 1 * 27/5 * 3/4 = 81/20 = 4 1/20
24 1/8 - 3 * 2 1/6 + 1/4 = 24 1/8 - 6 1/2 + 1/4 = 23 9/8 - 6 4/8 + 2/8 = 17 3/8

Answer 2

a) 10 3/20

b) 21

c) 40 1/2

d) 17 7/8