Odejmowanie ułamków zwykłych Oblicz: a) 6/7 - 5/7 = 11/15 - 3/15 = 7/9 - 5/9 = b) 2 3/5 - 1/5 = 5 1/2 - 1/2 = 4 7/13 - 2 = c) 5 2/3 - 2 1/3 = 7 4/7 - 2 1/7 = 6 7/8 - 3 5/8 = KL IV PROSZĘ O POMOC

Oblicz: a) 6/7 - 5/7 = 1/7 11/15 - 3/15 = 8/15 7/9 - 5/9 = 2/9 b) 2 3/5 - 1/5 = 2 2/5 5 1/2 - 1/2 = 5 4 7/13 - 2 = 2 7/13 c) 5 2/3 - 2 1/3 = 3 1/3 7 4/7 - 2 1/7 = 5 3/7 6 7/8 - 3 5/8 = 3 2/8 = 3 1/4

a) 6/7-5/7= 1/7 11/15-3/15=8/15 7/9-5/9=2/9 b) 2 i 3/5-1/5= 2 i 2/5 5 i 1/2-1/2=5 4 i 7/13-2=5 i 7/13 c) 5 i 2/3-2 i 1/3= 3 i 1/3 7 i 4/7-2 i 1/7= 5 i 3/7 6 i 7/8-3 i 5/8= 3 i 2/8= 3 i 1/4