Question

Ex 8 plssssss urgentt

Answer 1

3,2+5/9=32/10+5/9=16/5+5/9=(144+25)/45=169/45

sau3,2+0,5555555...=3,7555555...=3,7(5)

(16-1)/9+7/10+15/10=15/9+22/10=5/3+22/10=5/3+11/5=(25+33)/15=58/15

(381-38)/90+(52-5)/90=(343+47)/90=390/90=39/9=13/3

altfel pt urmatoarea cu periodice

0,8(1) +1,6(5)=0,8+0,0(1)+1,6+0,0(5)=2,4+1/90+5/90=2,4+0,0(6)=2,4(6)

3si1/2+1/4+1/3=7/2+1/4+1/3=42/12+3/12+4/12=49/12=4si1/12

1si2/6+1si3/8+1si5/2=1si1/3+1si3/8+1+2si1/2=1+1/3+1+3/8+3+1/2=

=1+1+3+1/3+3/8+1/2=

5+8/24+9/24+12/24=5+29/24=5+1+5/24=6si5/24=149/24