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Question
Carry out the following addition of a rational number.
`5/36 + 6/42`
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Solution
At first, we will calculate the LCM of 36 and 42. The prime factorisation is 36 and 42 is,
36 = 2 × 2 × 3 × 3
42 = 2 × 3 × 7
Now, LCM of 36 and 42 = 2 × 2 × 3 × 3 × 7 = 252
`5/36 + 6/42`
`= (5 xx 7)/(36 xx 7) + (6 xx 6)/(42 xx 6)`
`= 35/252 + 36/252`
`= (35 + 36)/252`
`= 71/252`
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`5/4 + ((-11)/4)`
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`(-9)/10 + 22/15`
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Write the Additive Inverse(Negative) of : 0
Write the Additive Inverse(Negative) of : `-1/3`
Fill in the Blank:
`(-5)/(-12)`+ its additive inverse = ______
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`7/11 - 3/7`
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`0/6 xx 3/4`
Solve:
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Add: `2 1/7 + 3 8/14`.
