Question

Bardzo proszę o pomoc ;)

a) 1 1/3 + 3/5

b) 2 5/6+ 1 3/8

C)5/9+5/6

D) 1 7/10+ 2 3/4

E 6 3/4-7/8

F 6 7/9-2/3

G 1 1/2-7/6

H) 7 3/4+5 4/5

Answer 1

a) 1 1/3 + 3/5 = 4/3 + 3/5 = 20/15 + 9/15 = 29/15 = 1 14/15

b) 2 5/6 + 1 3/8 =  17/6 + 11/8 = 68/24 + 33/24 = 101/24 = 4 11/24

c) 5/9 + 5/6 = 10/18 + 15/18 = 25/18 = 1 7/18

d) 1 7/10 + 2 3/4 = 17/10 + 11/4 = 44/20 + 55/20 = 99/20 = 4 19/20

e) 6 3/4 - 7/8 = 27/4 - 7/8 = 54/8 - 7/8 = 47/8 = 5 7/8

f) 6 7/9 - 2/3 = 61/9 - 2/3 = 61/9 - 6/9 = 55/9 = 6 1/9

g) 1 1/2 - 7/6 = 3/2 - 7/6 = 9/6 - 7/6 = 2/6

h) 7 3/4 + 5 4/5 = 31/4 + 29/5 = 155/20 + 116/20 = 271/20 = 13 11/20