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Question
Carry out the following addition of a rational number.
`1 2/3 + 2 4/5`
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Solution
`1 2/3 + 2 4/5`
`= (1xx3+2)/3 + (2xx5+4)/5`
`= 5/3 +14/5`
Now, the LCM of 3 and 5 is 15.
`5/3 + 14/5`
`= (5 xx 5)/(3 xx 5) + (14 xx 3)/(5 xx 3)`
`= 25/15 + 42/15`
` = (25 + 42)/15`
`= 67/15`
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`7/(-18) "and" 8/27`
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Evaluate:
`(2/(-3) xx 5/4) + (5/9 xx 3/(-10))`
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Multiply the following rational number.
`12/5 xx 4/15`
Multiply the following rational number.
`0/6 xx 3/4`
Write the multiplicative inverse.
`(-3)/8`
Find the sum: `6/5 + ((-14)/15)`
