Question

prove that the associative property
holds
true fore (7/8+2/5) +8/3

​

Answer 1

Answer:

(7/8+2/5) +8/3 =7/8+(2/5+8/3)

LCM is 40 +8/3 =7/8+LCM is 15

(7*5/8*5+2*8/5*8)+8/3 = 7/8+(2*3/5*3+8*5/3*5)

(35/40+16/40)+8/3 = 7/8+(6/15+40/15)

51/40+8/3 = 7/8+46/15

LCM is120 = LCM is120

51*3/40*3+8*40/3*40 = 7*15/8*15+46*8/15*8

153/120+320/120 = 105/120+368/120

473/120 = 473/120

hence verified

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