Find the upper bound for the following lengths:
a) 14.2 cm correct to 1 decimal place.

14.25

Step-by-step explanation:

1 d.p so 1/2=0.5

14.2+0.5=14.25

3/4 ÷ 3/4

step-by-step explanation:

basically divide any proper fraction with itself to fit the criteria.

so if we are using 3/4, then:

3/4 ÷ 3/4 = 1

so 1 is the quotient.

and the numerators for both these fractions is 3.   and if we divide the numerators:

3 ÷ 3 = 1

we see that quotient is equal to our original quotient as well.