2.7-0.8=1.9
1.9*2 1/3=19/10*7/3=133/30
5.2-1.4=3.8
3.8:3/7=19/5*7/3=133/15
133/30:133/15=133/30*15/133=1/2
154.66:70.3=2.2
1.6+2.2=3.8
3.8:1.9=2
2 2/5-1.3=2.4-1.3=1.1
1.1:4.3=11/10*10/43=11/43
2:11/43=2*43/11=86/11=7 9/11
1/2+x+8 9/11-7 9/11=2.625
1/2+x+1=2.625
х=2.625-1-1/2=2.625-1-0.5
х=1.125
Вот ответ на пример. Удачи
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Answers & Comments
2.7-0.8=1.9
1.9*2 1/3=19/10*7/3=133/30
5.2-1.4=3.8
3.8:3/7=19/5*7/3=133/15
133/30:133/15=133/30*15/133=1/2
154.66:70.3=2.2
1.6+2.2=3.8
3.8:1.9=2
2 2/5-1.3=2.4-1.3=1.1
1.1:4.3=11/10*10/43=11/43
2:11/43=2*43/11=86/11=7 9/11
1/2+x+8 9/11-7 9/11=2.625
1/2+x+1=2.625
х=2.625-1-1/2=2.625-1-0.5
х=1.125
Вот ответ на пример. Удачи