3 years ago

What is 2 1/4 - 1 2/5 please help me

Mathematics

1 answer:

Troyanec [42]3 years ago

5 0

Answer: 17/20=0.85

Step-by-step explanation:

You might be interested in

99.00000000000 x 9/11

julia-pushkina [17]

Step-by-step explanation:

=99*9/11

- -

_____

=891/11

=81

3 0

3 years ago

Simplify 4/(√5+ √2) - 3/(√5- √2)

MakcuM [25]

Step-by-step explanation:

$\frac{4}{ \sqrt{5} + \sqrt{2}} - \frac{3}{ \sqrt{5} - \sqrt{2} } = \\ = \frac{4( \sqrt{5} - \sqrt{2} ) - 3( \sqrt{5} + \sqrt{2} ) }{( \sqrt{5} + \sqrt{2} )\times ( \sqrt{5} - \sqrt{2} )} = \\ = \frac{4 \sqrt{5} - 4 \sqrt{2} - 3 \sqrt{5} - 3 \sqrt{2} }{5 - \sqrt{10} + \sqrt{10} - 2 } = \\ = \frac{ \sqrt{5} - 7 \sqrt{2} }{3}$