MCQ
$3.\overline{87}-2.\overline{59}= ?$
  • A
    $1.20$
  • B
    $1.2$
  • C
    $1.27$
  • $1.28$

Answer

Correct option: D.
$1.28$

$3.\overline{87}-2.\overline{59}= (3+0.\overline{87})-(2+0.\overline{59})$
$=\Big(3+\frac{87}{99}\Big)-\Big(2+\frac{59}{99}\Big)$
$=1+\Big(\frac{87}{99}-\frac{59}{99}\Big)$
$=1+\frac{28}{99}$
$=1.\overline{28}$

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