6 and 3/8
7 and 2/5
combine
you can just add the whole numbers
6+7=13
then add the confusing ones
3/8 +2/5
convert the bottom number to the same number
the number is 40
multiply 3/8 by 5/5=15/40
multiply 2/5 by 8/8=16/40
add
15/40+16/40=31/40
the naswer is 13 and 31/40
You would draw 48 counters and 18 counters which would be 66 counters in total. The picture is 1 of the sixteens and 1 of the nines. Sorry, if I misunderstood or got it wrong, I tried. If you don't understand something or I left out something, tell me in the comments.
Answer:
Step-by-step explanation
ok so what you are going to do with 3(x+4)(x-5) is multiply the 3*x, 3*4
which makes (3x+12)(3x-15)
combine like terms which gives you 6x = -15+12=-3
6x=-3 then -3/6 reduce it makes -1/2
3. 1/5 4. 13/20 pretty easy if you think about it