Question

PLS ACUM AM NEVOIE RAPID DAU COROANA

Answer 1

Răspuns:

a intregi b/c = c*a+b/c (formula)

a) 8/5+39/7=251/35

b)(14*4+9)/14+(21*2+11)/21=(12*14+27+4*21+22)/42

c)9/8-3/5=(45-24)/40=21/40

d) 48/12-11/8=(96-33)/24=63/24=21/8

4) a/b:c/d=a/b*d/c (Formula)

a) 3/5:6=3/5*1/6=1/10

b) 3/10:5/9=3/10*9/5=27/50 de verificat nu se vede foarte clar !!!

c) 35/6:7/2=35/6*2/7=5/3

d)35/6*7/2=245/12

e)4*15*2*13/26*40=3/5

f)6/5*2*1/3*3/2=9/5

5)

a) 9*2/1-18/5*5/2=9

b) 21/4x(3/2-2/7)=21/4*17/14=51/6

c) 11/2*9/4*1/2-6/5*5/12=99/16-1/2=99/16-8/16=91/16

d)25/36*4/5*9-3/4=5-3/4=17/4

e (5/2-5/2)/(3/5*1/2-1/4) = 0 de verificat nu se vede foarte clar

Explicație pas cu pas: