Q. Simplify. Express your answer as a single fraction in simplest form. 21−57p2q2
Find LCM: Find the least common multiple (LCM) of the denominators 2 and 5. The LCM is 10.
Make denominators same: Make the denominators the same by multiplying the first fraction by 5 and the second fraction by 2. This gives us 2×51×5−5×27p2q2×2, which simplifies to 105−1014p2q2.
Simplify expression: Simplify the expression by subtracting the numerators since the denominators are the same. The final simplified expression is (5−14p2q2)/10.
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