Question

Jak zrobić działania :
a) 7 3/4-7/8 =
b) 6 7/9-2/3 =
c) 1 1/2-6/7 =
d) 7 3/4-5 4/5 =

Answer 1

a) 7 3/4-7/8 = 31/4 - 7/8 = 62/8 - 7/8 = 55/8 = 6 7/8
b) 6 7/9-2/3 = 61/9 - 6/9 = 55/9 = 6 1/9
c) 1 1/2-6/7 = 3/2 - 6/7 = 21/14 - 12/14 = 9/14
d) 7 3/4-5 4/5 = 31/4 - 29/5 = 155/20 - 116/20 = 39/20 = 1 19/20

Answer 2

A) 7 3/4-7/8=31/4-7/8=62/8-7/8=55/8=6 7/8
b) 6 7/9-2/3=61/9-2/3=61/3-6/9=55/9=6 1/9
c) 1 1/2-6/7=3/2-6/7=21/14=9/14
d) 7 3/4-5 4/5=31/4-29/5=155/20-116/20=39/20