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slavikrds [6]
3 years ago
10

How can i evaluate this expression 3/2-4/7

Mathematics
2 answers:
Llana [10]3 years ago
6 0
simple\ method:\\\\\dfrac{a}{b}-\dfrac{c}{d}=\dfrac{ad-bc}{bd}\\==================\\\dfrac{3}{2}-\dfrac{4}{7}=\dfrac{3\cdot7-2\cdot4}{2\cdot7}=\dfrac{21-8}{14}=\boxed{\dfrac{13}{14}}
siniylev [52]3 years ago
4 0
\frac{3}{2} -  \frac{4}{7}
=  \frac{3}{2} +  \frac{-4}{7} 

=  \frac{21}{14} +  \frac{-8}{14}
=  \frac{21+-8}{14}
= \frac{13}{14}
<span>Decimal: 0.928571</span>
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