28÷3= 30÷4= 34÷4= 28÷5= 30÷4= 19÷4= 28÷6= 30÷7= 15÷2=

28:3=9 1/330:4=7 1/2=7,534:4=8 1/2=8,528:5=5 3/5=5,630:4=7 1/2=7,519:4=4 3/4=4,7528:6=4 4/630:7=7 2/715:2=7 1/2=7,5