Respuesta :

federicarossi596

Step-by-step explanation:

a-b

a=1/4

b= -2,15 -215/100 semplification -43/20

1/4-(-43/20)

1/4+43/20 minimum comune multiple

5+43/20=

48/20=12/5

profereyes12122

Answer:

[tex]3.4[/tex]

[tex]\frac{17}{5}[/tex]

[tex]3\frac{2}{5}[/tex]

Step-by-step explanation:

[tex]a-b=1\frac{1}{4}-(-2.15)[/tex]

[tex]=\frac{5}{4} +2.15[/tex]

[tex]=1.25+2.15[/tex]

[tex]=3.4[/tex]

In fraction

[tex]3.4=\frac{34}{10} =\frac{17}{5}[/tex]

mixed number

[tex]\frac{17}{5} =3\frac{2}{5}[/tex]

I hope this help you

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