Question

Dodawanie i odejmowanie liczb dodatnich . oblicz : a 3/6+2/6 b 1 5/8+2 3/8 c 6- 2/7 d 1/4-1/8 e 6 1/2-1 1/4 f 5-3 3/7

Answer 1

a) 3/6 + 2/6 =5/6

b)1,5/8+2,3/8=3,8/8=4

c)6-2/7=5,5/7

d)1/4-1/8=2/8-1/8=1/8

e)6,1/2-1,1/4=6,2/4-1,1/4=5,1/4

f)5-3,3/7=1,4/7

Answer 2

a)3/6+2/6=5/6

b)1 5/8+2 3/8=13/8+19/8=32/8=4

c) 6-2/7=6/1 - 2/7=42/7-2/7=40/7

d)1/4-1/8=2/8-1/8=1/8

e)6 1/2-1 1/4=13/2-5/4=26/4 - 5/4=21/4

f)5-3 3/7=5/1-24/7=35/7-24/7=11/7