what is 2/5 + 3/10 add and simplyfy ?
7/10 which could also be 0.7
2/5 +3/10.. The LCD for 5 and 10 is 205 x 4 = 20 so 2 x 4 = 8. 2/5 = 8/2010 x 2 = 20 so 3 x 2 = 6. 3/10 = 6/206/20 + 8/20 = 14/20 = 7/10Hope I helped. I'm pretty sure I'm right. :))
