Answer:
Jackson should buy 13 packs of stationery and 11 packs of envelopes to have same number of each.
Step-by-step explanation:
Stationery is sold in the packs of 11.
Envelopes are sold in the packs of 13.
Now, as 11 and 13 both do not have any other factors than 1 and itself.
⇒ 11 and 13 are PRIME NUMBERS.
Now, 13 = 1 x 13
and 11 = 1 x 11
So, the LCM of the prime numbers 13 and 11 = 13 x 11 = 143 = 11 x 13
So, for 13 packs of Stationery will have 13 x 11 = 143 pieces
and 11 packs of envelopes will have 11 x 13 = 143 pieces
Hence, Jackson should buy 13 packs of stationery and 11 packs of envelopes to have same number of each.
