Question

Oblicz. Pamiętaj o kolejności wykonywania działań:
a) 5 1/3 - 2 4/5 - 1 3/4 =
b) 36/35 - 5/7 - 5/35 =
c)12 5/6 - 10 2/3 + 7 3/5 =
d) 6 3/10 + 3 4/5 - 3 2/5 + 7 3/5 =
e) 10 1/6 - (12 3/4 - 7 5/6) - 3 1/2 =
f) 1 3/4 + (99 7/20 - 89 2/5) - 1 1/2=


Pliss

Answer 1

A)5 1/3-2 4/5-1 3/4=5 20/60-2 48/60-1 45/60=3 140/60-2 48/60-1 45/60=1 92/60-1 45/60=47/60
b)36/35-5/7-5/35=36/35-25/35-5/35=6/35
c)12 5/6-10 2/3+7 3/5=12 25/30-10 20/30+7 18/30=2 5/30+7 18/30=9 23/30
d)6 3/10+3 4/5-3 2/5+7 3/5=6 3/10+3 8/10-3 4/10+7 6/10=9 11/10-3 4/10+7 6/10=6 7/10 +7 6/10=13 13/10=14 3/10
e)10 1/6-(12 3/4-7 5/6)-3 1/2=10 1/6-(12 9/12-7 10/12)-3 1/2=10 1/6-(11 21/12-7 10/12) - 3 1/2=10 1/6-4 11/12-3 1/2=10 2/12-4 11/12-3 6/12=8 26/12-4 11/12-3 6/12
=4 15/12-3 6/12=1 9/12=1 3/4
f)1 3/4+(99 7/20-89 2/5)-1 1/2=1 15/20+(99 7/20-89 8/20)-1 10/20=1 15/20+( 98 27/20-89 8/20)-1  10/20=1 15/20+9 19/20- 1 10/20=10 34/20-1 10/20=9 24/20=10 4/20=10 1/5