Question

using properties , simplify the following​

Answer 1

Answer:

–9/146

Step-by-step explanation:

–3/8 ×( 10 –7 ) /18

–3/8 × 3/18

–9/146

Answer 2

Given :

$\displaystyle\frac{-3}{8}$ $\displaystyle\frac{5+ - 7}{9 + 18}$

First lets do LCM

LCM = 18

$\displaystyle\frac{5 × 2 - 7 × 1}{9 × 2 + 18 × 1}$ To make denominators same

multiply by 2 as 9 × 2 is 18 the both numerator

$\displaystyle\frac{10 - 7}{18 + 18}$

$\displaystyle\frac{3}{18}$ Now we found what is inside the bracet

$\displaystyle\frac{-3 × 3}{8 × 18}$ let's multiply the first answer with the given one

$\displaystyle\frac{-3}{144}$

= 48 so the answer is 48