Question

5 17/24-(-2 3/8 )=

(5 4/15- 3 7/24):8/10 =

3 1/4 * (-0,4)+3 1/4 * (15,6) =

Answer 1

5  17/24-(-2 3/8 )=137/24 -(-18/8)= 137/24+54/24=191/24 =7 23/24

 

 

(5 4/15- 3 7/24):8/10 = (79/15 - 79/24) : 8/10 = (632/120 - 395/120):8/10= 237/120 * 10/8 = 237/96 = 2 45/96

 

3 1/4 * (-0,4)+3 1/4 * (15,6) = 13/4 * (-4/10) + 13/4 * 156/10 = -13/10 + 507/10 = 494/10 = 49 4/10

 

 

Mam nadzieje że pomogłam... ;)

Answer 2

5 17/24-(-2 3/8)=5 17/24 + 2 3/8 = 5 17/24+2 9/24 = 8 1/12

 

(5 4/15- 3 7/24):8/10 = (5 32/120 - 3 35/120): 8/10= 1 117/ 120: 8/10= 237/120 * 10/8= 

= 237/96 = 2 45/96

 

3 ¼* (- 0,4) + 3 ¼ * (-15,6)=3,25* (-0,4) + 3,25 * (-15,6)= ( - 1,3)+ (-50,7)=(-52)