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false
Quiz
Arithmetic
5 problems similar to:
1 - \frac { 1 } { 7 } - \frac { 6 } { 21 } = \frac { 7 - 18 } { 7 }
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21-3-6=3\left(7-18\right)
Multiply both sides of the equation by 21, the least common multiple of 7,21.
18-6=3\left(7-18\right)
Subtract 3 from 21 to get 18.
12=3\left(7-18\right)
Subtract 6 from 18 to get 12.
12=3\left(-11\right)
Subtract 18 from 7 to get -11.
12=-33
Multiply 3 and -11 to get -33.
\text{false}
Compare 12 and -33.
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