$ 3+\frac{-1}{2}+\frac{-3}{4} $

Academic Mathematics NCERT Class 7

$3+\frac{-1}{2}+\frac{-3}{4}$

$=3-\frac{1}{2}-\frac{3}{4}$

Convert element to fraction: $\quad 3=\frac{3}{1}$

$=\frac{3}{1}-\frac{1}{2}-\frac{3}{4}$

Least Common Multiplier of 1,2,4: 4

Adjust Fractions based on the LCM

$=\frac{12}{4}-\frac{2}{4}-\frac{3}{4}$

since the denominators are equal, combine the fractions:

$=\frac{12-2-3}{4}$

$=\frac{7}{4}$

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Updated on: 10-Oct-2022

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