Evaluate:
4+3−54 + \dfrac{3}{-5}4+−53
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41+−35\dfrac{4}{1} + \dfrac{-3}{5} \\[1em]14+5−3
LCM of 1 and 5 is 5
4×51×5+−3×15×1=205+−35=20+(−3)5=175=325\dfrac{4 \times 5}{1 \times 5} + \dfrac{-3 \times 1}{5 \times 1} \\[1em] = \dfrac{20}{5} + \dfrac{-3}{5} \\[1em] = \dfrac{20 + (-3)}{5} \\[1em] = \dfrac{17}{5} \\[1em] = 3\dfrac{2}{5}1×54×5+5×1−3×1=520+5−3=520+(−3)=517=352
∴ 4+3−5=3254 + \dfrac{3}{-5} = 3\dfrac{2}{5}4+−53=352
Answered By
Add each pair of rational numbers, given below, and show that their addition (sum) is also a rational number:
7−18\dfrac{7}{-18}−187 and 827\dfrac{8}{27}278
59+−76\dfrac{5}{9} + \dfrac{-7}{6}95+6−7
1−15+5−12\dfrac{1}{-15} + \dfrac{5}{-12}−151+−125
59+3−4\dfrac{5}{9} + \dfrac{3}{-4}95+−43
