Question

Help me with mathhs .

Answer 1

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

Answer 2

Answer:

$3.4$

$\frac{17}{5}$

$3\frac{2}{5}$

Step-by-step explanation:

$a-b=1\frac{1}{4}-(-2.15)$

$=\frac{5}{4} +2.15$

$=1.25+2.15$

$=3.4$

In fraction

$3.4=\frac{34}{10} =\frac{17}{5}$

mixed number

$\frac{17}{5} =3\frac{2}{5}$

I hope this help you