Read the fine print. One coupon per pair of items. It's not setup to work that way.
4.50 x 2 = 9.00 ... div by 1.50 = 6 coupons .... IF multiple couponing is allowed (which is becoming rare).
$1.50 off every 2 bags of m&m's. Each bag of m&m's is $4.47. How many coupons do I need to use before I can get them for free? Hope I asked this correctly.