Question

Proszę o rozwiązanie, z góry dzięki.

a)

b)

c)

d)

e)

Answer 1

7/8-4/3*2/5=7/8-8/15=105/120-64/120=41/120

2/5-2 1/4:2/7=2/5-9/4*7/2=2/5-63/8=16/40-315/40=-299/40=-7 19/40

1,4+3/5-2,1:1/10=14/10+6/10-21/10*10/1=20/10-21/1=2-21=-19

5/3*1,2+1,8=60/30+1,8=2+1,8=3,8

3/2:4/6+7,2*1/2=3/2*6/4+72/10*1/2=18/8+72/20=90/40+144/40=234/40=5 34/40=5 17/20

Answer 2

a)=7/8-8/15=105/120-56/120=49/120

b)

=2/5-9/4razy7/2=2/5-63/8=16/40-315/40=-299/40=-719/40

c)=1.4+0.6-2.1:0.1=2-21=-19

D)=5/3razy12/10+1.8=60/30+1.8=2+1.8=3,8

e)=3/2razy6/4+7,2razy0,5=18/8+3,6=2,25+3,6=5,85