Question

Simplify ==
3/8 +(-2/7)+(-4/15)​

Answer 1

Answer:

$\frac{-149}{840}$

Step-by-step explanation:

$\frac{3}{8} + (\frac{-2}{7} )+( \frac{-4}{15} )$

= $\frac{3}{8} - \frac{2}{7} - \frac{4}{15}$

LCM = 840

= $\frac{315 - 240 - 224}{840}$

= $\frac{-149}{840}$

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Answer 2

Step-by-step explanation:

$\frac{3}{8} + ( - \frac{2}{7}) +( - \frac{4}{15}) \\ = \frac{3}{8} - \frac{2}{7} - \frac{4}{15 } \\ = \frac{15(3) - 120(2) - 56(4)}{840} \\ (as \: you \: know \: how \: to \: do \: lcm) \\ = \frac{45 - 240 - 224}{840 } \\ = \frac{419}{840 }$