Question

Oblicz zad 3 str 16 matematyka dla lo, technikum zakres podstawowy
a) 1 3/5 - 2 1/6
b) 3 3/8 + 2 5/6
c) 1/2 - (-1/6 - 1/3) Do wspólnego mianownika
d) 7/6 + (-5/4 - 4/3)
e) -(-2 2/3) + 7/15

f) -1 9/16 + 11/12
g) 1 5/8 - (-2 2/3 + 0,25)
h) 1 2/5 - 3 7/8- 0,125
i) 1/2 - 1/3 - (1/4 - 1/5)

Answer 1

A) 1 3/5-2 1/6=1 18/30-2 5/30= -17/30
b)3 3/8+2 5/6=3 9/24+2 20/24=5 29/24=6 5/24
c)1/2-(-1/6-1/3)=3/6-(-1/6-2/6)=3/6-(-3/6)=6/6=1
d)7/6+(-5/4-4/3)=14/12+(-15/12-16/12)=14/12+(-31/12)= -17/12
e)-(-2 2/3)+7/15=2 2/3+7/15=2 10/15+7/15=2 17/15=3 2/15
f)-1 9/16+11/12= -1 27/48+44/48= -31/48
g)1 5/8-(-2 2/3+0,25)=1 15/24-(-2 16/24+6/24)=1 15/24-(-2 10/24)=1 15/24+2 10/24=3 25/24=4 1/24

h)1 2/5-3 7/8-0,125=1 16/40-3 35/40-5/40= -2 19/40 -5/40= -2 24/40= -2 3/5
i)1/2-1/3-(1/4-1/5)=30/60-20/60-(15/60 -12/60)=10/60-3/60=7/60