maths question
rational number
addtion:3/8+(-5)/7
Answers
Answered by
1
Answer:
3/8+(-5)/7
21/56+(-40)/56
-19/56
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Answered by
0
Answer:
0.33928571428
Step-by-step explanation:
For the 1st fraction, since 8 × 7 = 56,
3
8
=
3 × 7
8 × 7
=
21
56
Likewise, for the 2nd fraction, since 7 × 8 = 56,
5
7
=
5 × 8
7 × 8
=
40
56
Add the two fractions:
21
56
+
40
56
=
21 + 40
56
=
61
56
So, 3/8 + 5/7 = 61/56
In mixed form: 1
5
56
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