Question

13.Simplify: (−4 9 × 63 28 ) − [ 33 6 × ( −25 20 )]+(5 8 × 4 10 )​

Answer 1

Answer:

i) 5−8 is a rational number because it is in the form of pq, ... L.C.M of 10,15,20,30=60−3×610×6=−1860−7×415×4=−2860−11×320×3=−3360−17×230×2=−3460 ...

Answer 2

Answer:

(−49 × 6328) − [336 × (−2520)] + (58 × 410) = 560428

Step-by-step explanation:

​(−49 × 6328) − (336(−2520)) + (58 × 410)

= −49 × 6328 − 336(−2520) + 58 × 410

−49 × 6328 = −310072

336 (−2520) = −846720

58 × 410 = 23780

=−310072 − (−846720) + 23780

apply - a-(-b) = a+b

−310072 + 846720 + 23780 = 560428