2. Verify that x - y is a rational number when
i. x = 1, y =5/7 ii x= -3/7 ,y= -2/5
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Answer:
plize klick on brainlests plize
Step-by-step explanation:
number means that if
b
a
and
d
c
are two rational numbers,
Then
b
a
+
d
c
=
d
c
+
b
a
Here we have,
−7
2
=−
7
2
and
−35
12
=−
35
12
−7
2
+
−35
12
=−
7
2
−
35
12
=−
7×5
2×5
−
35
12
=−
35
10
−
35
12
=
35
−10−12
=−
35
22
And,
−35
12
+
−7
2
=−
35
12
−
7
2
=−
35
12
−
7×5
2×5
=−
35
12
−
35
10
=
35
−12−10
=−
35
22
∴
−7
2
+
−35
12
=
−35
12
+
−7
2
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