Question

find the difference by subtracting -16/ -7 from 13/15​

Answer 1

Answer:

Adding Integers

RULE 1. If the addends have the same sign, add the two numbers and prefix their common sign.

(+62) + (+14) = +76 (-29) + (-13) = -42

RULE 2. If the addends have different signs, find the difference between the two numbers and prefix the sign of the number that is the greater distance from zero.

(+15) + (-8) = +7 (+9) + (-30) = -21

Answer 2

• We have to evaluate the above expression by using the given data.

              Given data:- $\frac{13}{15} -\frac{-16}{-7} .$

              To find:- Value of given expression.

              Solution:-

• We know that Subtraction means taking away some value from another value.

• Subtraction is denoted by (-).

• Properties of subtraction are as follows:-

1. Subtracting a number from itself.
2. Subtracting 0 from a number.
3. Order property.
4. Subtraction of 1.

        Therefore,

         $\begin{array}{l}\frac{13}{15}-\frac{-16}{-7} \\\\=\frac{13}{15}-\frac{16}{7} \\\\=\frac{13 \times 7}{15 \times 7}-\frac{16 \times 15}{7 \times 15} \\\\=\frac{91}{105}-\frac{240}{105} \\\\=\frac{91-240}{105} \\\\=-\frac{149}{105}.\end{array}$

       Hence we will get the value is $\frac{13}{15} -\frac{-16}{-7} =-\frac{149}{105}.$