Subtracting Fractions with different denominators

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Subtracting Fractions with different denominatorsLet’s take an example Subtract 𝟏/𝟐 & 𝟏/𝟓 1/2 − 1/5 We use two methods to solve this Method 1 1/2 − 1/5 = (1 × 5 − 1 × 2)/(2 × 5) = (5 − 2)/6 = 𝟑/𝟏𝟎 Method 2 1/2 − 1/5 Making denominators same. Common denominator. = LCM of 2 & 5 = 2 × 5 = 10 ∴ 1/2 1/5 Thus, 1/2 − 1/5 = 5/10 − 2/10 = (5 − 2)/10 = 𝟑/𝟏𝟎 We will be using Method 1 mostly to add or subtract fractions