Evaluate:
23+−45−13−25\dfrac{2}{3} + \dfrac{-4}{5} - \dfrac{1}{3} - \dfrac{2}{5}32+5−4−31−52
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(23−13)+(−45−25)=(2−13)+(−4−25)=(13)+(−65)\Big(\dfrac{2}{3} - \dfrac{1}{3}\Big) + \Big(\dfrac{-4}{5} - \dfrac{2}{5}\Big)\\[1em] =\Big(\dfrac{2 - 1}{3}\Big) + \Big(\dfrac{-4 - 2}{5}\Big)\\[1em] =\Big(\dfrac{1}{3}\Big) + \Big(\dfrac{-6}{5}\Big)(32−31)+(5−4−52)=(32−1)+(5−4−2)=(31)+(5−6)
LCM of 3 and 5 is 3 x 5 = 15
=1×53×5+−6×35×3=515+−1815=5+(−18)15=−1315=\dfrac{1 \times 5}{3 \times 5} + \dfrac{-6 \times 3}{5 \times 3}\\[1em] =\dfrac{5}{15} + \dfrac{-18}{15}\\[1em] =\dfrac{5 + (-18)}{15}\\[1em] =\dfrac{-13}{15}=3×51×5+5×3−6×3=155+15−18=155+(−18)=15−13
Answered By
What should be added to -2 to get 38\dfrac{3}{8}83 ?
37+−49−−117−79\dfrac{3}{7} + \dfrac{-4}{9} - \dfrac{-11}{7} - \dfrac{7}{9}73+9−4−7−11−97
Evaluate
47−−89−−137+179\dfrac{4}{7} - \dfrac{-8}{9} - \dfrac{-13}{7} + \dfrac{17}{9}74−9−8−7−13+917
The number which on multiplying with 5235\dfrac{2}{3}532 gives -1231\dfrac{2}{3}132 is:
−57-\dfrac{5}{7}−75
57\dfrac{5}{7}75
−517-\dfrac{5}{17}−175
175\dfrac{17}{5}517
