Question

$( \frac{81}{49} ) ^{ - \frac{3}{2} }$
please solve correct answer​

Answer 1

Answer:

$\tt \huge = \frac{15}{98}$

Step-by-step explanation:

$\huge \tt \frac{81}{49} - \frac{3}{2} \\ \\ \huge \tt l.c.m. \: of \: 49 \: and \: 2 \: is \: 98 \\ \\ \huge \tt = \frac {81 \times 2 - 3 \times 49}{98} \\ \\ \huge \tt = \frac{162 - 147}{98} \\ \\ \huge \tt = \frac{15}{98}$

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Answer 2

Answer:

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Step-by-step explanation:

$( \frac{81}{49}) - \frac{3}{2}$

First of all equal denominators by doing L.C.M

L.C.M = Least Common Multiple

L.C.M of 49 and 2 will be = 2×7×7 = 98

Multiply the numerator by the given L.C.M =98

81×2= 162

3×49= 147

Now do minus

Ans Will be

$\frac{15}{98}$