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Rational Numbers — MATHS STD 7 — Question

ICSE BoardEnglish MediumSTD 7MATHSRational Numbers1 Mark
Question
If $-57=\frac{57}{\mathrm{a}}$ then $\mathrm{a}=$______
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Answer

If $-57=\frac{57}{a}$ then $a=\frac{57}{-57}=-1$

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