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Stella [2.4K]
3 years ago
11

Convierte los decimales a fracción:

Mathematics
1 answer:
Norma-Jean [14]3 years ago
4 0

(a) Let <em>x</em> = 3.12333…. Then 100<em>x</em> = 312.333… and 1000<em>x</em> = 3123.333…, so that

1000<em>x</em> - 100<em>x</em> = 3123.333… - 312.333…

==>   900<em>x</em> = 2811

==>   <em>x</em> = 2811/900 = 937/300

(b) <em>x</em> = 4.38555…   ==>   100<em>x</em> = 438.555… and 1000<em>x</em> = 4385.555…

==>   900<em>x</em> = 3947

==>   <em>x</em> = 3947/900

(c) <em>x</em> = 37.222…   ==>   10<em>x</em> = 372.222…

==>   9<em>x</em> = 335

==>   <em>x</em> = 335/9

(d) <em>x</em> = 16.292929…   ==>   100<em>x</em> = 1629.292929…

==>   99<em>x</em> = 1613

==>   <em>x</em> = 1613/99

(e) <em>x</em> = 2.333…   ==>   10<em>x</em> = 23.333…

==>   9<em>x</em> = 21

==>   <em>x</em> = 21/9 = 7/3

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